查单词 · 学外语

精品英语词典

首页certaincertain考试真题

certain

英 ['sɜːt(ə)n; -tɪn] 美['sɝtn]

英英释义同义词辨析词组搭配考试真题实用场景例句

adj. 某一；必然的；确信；无疑的；有把握的
pron. 某些；某几个
n. (Certain)人名；(葡)塞尔塔因；(法)塞尔坦

考试真题

Donohue, now a history teacher, agrees that it helped during certain parts of her education: I can definitely remember what I learned on certain days at school.

Consumers are loyal to certain brands.

The study, which followed more than 2,000 healthy adults between the ages of 18 and 60, found that certain mental functions—including measures of abstract reasoning, mental speed and puzzle-solving—started to dull as early as age 27.

In general, Salthouse and his colleagues found, certain aspects of cognition ( ' , 认知能力) generally started to decline in the late 20s to 30s.

Declining mental function is often seen as a problem of old age, but certain aspects of brain function actually begin their decline in young adulthood, a new study suggests.

The helpless ones believe intelligence is a fixed characteristic: you have only a certain amount, and that's that.

It's commonly known that certain diseases are linked with occupations like lung disease in coal miners.

It might mean monitoring employee productivity on a digital leaderboard and offering prizes to the winners, or giving employees digital badges or stars for completing certain activities.

Early kites were built for certain uses.

Any research that suggests that abilities to perform certain behaviors are based in biology is controversial.

Only certain parts of the eye can be replaced.

A drop in oxygen pressure can cause headaches in certain individuals.

Also, certain types of bacteria are extremely harmful, and it takes only a small number to make you sick.

Back in June, the Federal Communications Commission fined AT&T $100 million over accusations that the carrier secretly reduced wireless speeds after customers consumed a certain amount of data.

California has been facing a drought for many years now, with certain areas even having to pump freshwater hundreds of miles to their distribution system.

Donohue, now a history teacher, agrees that it helped during certain parts of her education: "I can definitely remember what I learned on certain days at school."

In the second experiment meant to pit the mice's hunger against their fear, hungry mice were placed in a cage that had certain "fox-scented" areas and other places that smelled safer but also had food.

It has been found that not eating breakfast is related to the incidence of certain diseases in some countries.

Or like speeding, it's very easy to put speed cameras in certain places.

Public health groups applauded the approved tax as a step toward fixing certain lasting health issues that plague Americans.

Student teachers are motivated to help Betty master certain materials.

The medical community also takes aging for granted, and can do nothing about it except keep people within a certain health range.

These games will get you used to thinking in a certain way.

This is only at certain times and on condition that they are processed at factories based near Japanese ports.

They have changed the previous migration habits of certain birds.

The challenge is if certain types of people are doing something, it's difficult for other people to break into it, said Po-Shen Loh, the head coach of last year's winning U.S.Math Olympiad team.

The belief that research data is private intellectual propertyThe concern that certain agencies may make a profit out of it.

In fact, they are prescribed and they’regiven at a certain level, a dosage that is understood by a practitioner who’s been trained.

Without sustained external pressure it seems certain Mr.

They had certain ingredients missing.

Racial terms are still useful in certain fields of study.

There are certain products andservices that are very suitable for selling online, and others that simply don’t work.

But economists who study the relationship between money and happiness have consistently found that, above a certain income, the two do not reliably correlate.

Certain conclusions are nonetheless clear

First, we decide whether we are superior or inferior to others on certain dimensions, such as attractiveness, intelligence, popularity, etc.

At certain stages of life, especially adolescence, the pressure to be seen as similar to peers is immense

On occasions it is the fear that certain disclosures may be unacceptable to family or friends that motivates an individual to seek professional help.

It is by no means certain that the settlement will be enacted (执行) – it is the subject of afairness hearing in the US courts.

But what is certain is that, in some way or other, Google's entrance into digital book selling will have a significant impact on the book world in the years to come

That conclusion was reinforced by another finding: that their opposition appeared to soften when that fiscal burden decreased, as occurred with welfare reform in the 1990s, which curbed immigrants' access to certain benefits.

It takes a certain type of person who will bang his head against the wall because you believe you'll find the solution.

This might seem like the ultimate defeat for racism, but ignoring the race of certain select individuals—a phenomenon that psychologists call subtyping—also has an insidious (隐伏的) side.

Mandelbrot, who did the experiment with stock exchanges prices, for example, noted that although the outcomes were variable, there were in fact certain constancy

There are certain underlying similarities

Explain certain natural phenomena.

It enhances immunity to certain diseases

Workers have the legal rights to refuse certain unsafe work assignments under two federal laws: the Occupational Safety and Health Act and the National Labor Relations Act.

And grass-fed dairy and meat have been shown to be higher in certain nutrients and healthy fats.

But even without gadgets that understand our spoken commands, research suggests that, as bizarre as it sounds, under certain circumstances, people regularly ascribe human traits to everyday objects.

But there are certain situations that do warrant extra protein.

Flight attendants, firefighters, and police officers have to be over a certain height, and be physically fit.

When a tree first starts growing in a certain area, it's likely that the 27 climatic envelope—the temperature, humidity, rainfall patterns and so on—suits it.

However, there are certain advantages of public universities, such as the fees being free.

I'm certain of it, absolutely, especially if it's difficult for a competitor to copy.

In fact, they are prescribed and they're given at a certain level, a dosage that is understood by a practitioner who's been trained.

It is certain that the Census procedures, which lump the online sales of major traditional retailers like Walmart with "'non-store retailers" like food trucks, can mask major changes in individual retail categories.

Joseph has learned that a farmer has to have a certain mindset to successfully convert.

So it was pretty certain that the enemy would not be able to understand the code talkers.

The developing brain, the report says, is particularly vulnerable to the toxic effects of certain chemicals these products may contain, and the damage they cause can be permanent.

There are certain products and services that are very suitable for selling online, and others that simply don't work.

When they detect an extended dry period, they divert their metabolisms, producing sugars and certain stress- associated proteins and other materials in their tissues.

without sustained external pressure it seems certain Mr. Cameron would still be hooked on the interests of big tobacco companies

Beyond a certain point, though, further stress will only lead to exhaustion, illness and finally a breakdown.

But one thing is certain, all people encounter mountains in their life.

Chimps will cooperate in certain ways, like gathering in war parties to protect their territory.

Dig a hole of a certain size.

Explain why the number of certain species has declined.

For some reason, when certain shows switched into a commercial, a loud noise would sound for a few seconds.

Govemments could order the sharing of certain kinds of data, with users' consent.

If certain kinds begin to disappear from the ocean, Dutkiewicz said, it will change the type of fish that will be able to survive.

If you are a teenager living in certain parts of the province, you could be eligible for this program.

Medical research often makes use of the forests' plant and animal life, and the destruction of such species could prevent researchers from finding cures for certain diseases.

One thing is certain: the truth about love is not yet set in stone.

One thing is for certain—Larry went above and beyond the call of duty by getting so close to the burning vehicle! His efforts most likely saved the woman's life.

The change in how coffee is grown from shade-grown production to full-sun production endangers the very existence of, certain animals and birds, and even disturbs the world's ecological balance.

They are affected by certain body chemicals.

To ensure the safe operation of the smoke detector, one should make certain the red light is working.

Trying to help injured, displaced or sick creatures can be heartbreaking; survival is never certain.

Up to a certain point, the more stress you are under, the better your performance will be.

Even today, in our industrial life, apart from certain values of industriousness and thrift, the intellectual and emotional reaction of the forms of human association under which the world's work is carried on receives little attention as compared with physical output.

Anecdotal evidence of this kind fits nicely with the idea that only certain special people can drive trends.

Far less certain, however, is how successfully experts and bureaucrats can select our peer groups and steer their activities in virtuous directions.

They often include a certain amount of digging to test for buried materials at selected points across a landscape.

Factors such as the place and period in which we are reading, our gender ethnicity, age and social class will encourage us towards certain interpretation but at the same time obscure or even close off others.

And I felt like that again, to a certain degree, when people responded to the blog so well.

Certain jobs have gone away for good, outmoded by machines.

Far less certain, however, is how successfully experts and bureaucrats can select our peer groups and steer their activities in virtuous directions.

Restrictions that keep highly polluting cars out of certain areas - city centers, school streets", even individual roads - are a response to the absence of a larger effort to properly enforce existing regulations and require auto companies to bring their

The decisions made it more difficult for states to collect sales tax on certain online purchases.

The Europe Union is now considering legislation to compel corporate boards to maintain a certain proportion of women—up to 60 per cent.

The theory also seems to explain the sudden and unexpected popularity of certain looks, brands, or neighborhoods.

Through experiments and observation, social scientists like Dr. Berning have learned that there is power in tying certain behaviors to habitual cues through ruthless advertising.

To a certain extent, our ability to excel in making the connections that drive intelligence is inherited.