Excessive Internet use should be defined not by the number of hours spent online but "in terms of losses," said Maressa Orzack, a Harvard University professor.

出自-2010年6月阅读原文

The difference lies in whether the project is in a sense defined and developed by the student or whether it's assigned by a teacher.

2019年6月四级真题（第三套）阅读 Section B

The length of the workday, for many workers, is defined by time.

2015年12月四级真题（第一套）阅读 Section C

The-doctors response to the question of whether or not dogs can fall in love like humans do was a straight "Of course!" He went on to say that if love is defined as a long term commitment meaning dogs seek one another out when they're apart, they're happy

2019年12月四级真题（第二套）听力 Section C

But try to imagine our world as well without the remarkable works that have defined our culture and values.

出自-2010年12月阅读原文

Michael Yudell, a professor of public health at Drexel University in Philadelphia, said that modern genetics research is operating in a paradox: on the one hand, race is understood to be a useful tool to illuminate human genetic diversity, but on the othe

2016年12月六级真题（第一套）阅读 Section C

Once you have started the boulder rolling, it develops momentum, which is defined by its mass and velocity.

2015年12月六级真题（第一套）阅读 Section B

Resurrection plants, defined as those capable of recovering from holding less than 0.1 grams of water per gram of dry mass, are different.

2018年6月六级真题（第一套）阅读 Section B

The Wallaces, both children of church ministers, had a clearly defined formula for their "little magazine", as Reader's digest was originally subtitled.

2018年6月六级真题（第一套）听力 Section C

Twenty years ago, the Urban Land Institute defined the two types of cities that dominated the US landscape: smaller cities that operated around standard 9-5 business hours and large metropolitan areas that ran all 24 hours of the day.

2017年12月六级真题（第一套）阅读 Section C

Desktop computers, basic mobile phones, and box-set TVs defined 1992.

2018年高考英语全国卷I 阅读理解 阅读D 原文

If acceptable social behavior is too strictly defined and controlled, the insensitive or aggressive behavior that administrators are seeking to minimize may actually be encouraged.

2016年高考英语北京卷 阅读理解 阅读D 原文

On the other hand, Ericsson(1993) suggests that the most effective learning occurs through involvement in highly structured activities defined as deliberate practice.

2015年高考英语上海卷 阅读理解 阅读表达 原文

first generation was defined as not having a parent with a four-year college degree.

2015年考研真题（英语二）阅读理解 Section Ⅱ

In other words, at a time when the working class has turned the country on its political head, frustrated that the opportunity that once defined America is vanishing, one obvious solution is staring us in the face.

2018年考研真题（英语二）阅读理解 Section Ⅱ

It is often defined in terms of body mass index, or BMI.

2014年考研真题（英语二）完形填空 Section Ⅰ

It was not until the mid-1980s, when amplifying age and sex differences became a dominant children's marketing strategy, that pink fully came into its own, when it began to seem inherently attractive to girls, part of what defined them as female, at least

2012年考研真题（英语二）阅读理解 Section Ⅱ

One reason for the persistence of this pyramid of production is that for the past half-century, much of the world's media culture has been defined by a single medium - television - and television is defined by downloading.

2012年考研真题（英语一）阅读理解 Section Ⅱ

One reason for the persistence of this pyramid of production is that for the past half-century, much of the world's media culture has been defined by a single medium—television—and television is defined by downloading.

2012年考研真题（英语一）阅读理解 Section Ⅱ

Some imagine that the coming work-free world will be defined by inequality.

2017年考研真题（英语二）完形填空 Section Ⅰ

The concept of sustainable development has been defined as profitable.

2016年考研真题（英语一）阅读理解 Section Ⅱ

They suggest beauty should not be defined by looks that end up impinging on health.

2016年考研真题（英语一）阅读理解 Section Ⅱ