Between 1981 and 1997, detailed time-use studies showed that the time children spent at play declined by 25 percent.

从1981年到1997年，详尽的时间使用研究表明，孩子们花在玩耍上的时间减少了25%。

youdao

Only those species with ways of spreading to these islands were able to undertake the long journeys, and the various factors at play resulted in diverse combinations of new colonists on the islands.

只有那些有办法传播到这些岛屿的物种才能进行长途旅行，各种因素在起作用，导致岛上新殖民者的多样化组合。

youdao

On these magic shores, children at play are for ever beaching their coracles.

在这些神奇的海岸上，玩耍的孩子不停把他们的小圆船拖到岸边。

youdao

The young people here are hard at play, and the Muslim elders are hard at work trying to keep them engaged in positive activities.

VOA: standard.2009.12.20

There may be other variables at play but, all things being equal, similarity does not breed contempt.

可能有其他因素发挥作用,但是，如果所有因素都一样，如果两个人相似，就不会轻视对方。

耶鲁公开课 - 心理学导论课程节选

Now Milton at the same time -- we're talking about the 1640s - had been contemplating writing a play.

弥尔顿在同一时期--17世纪40年代,-同时在考虑要写一部戏剧。

耶鲁公开课 - 弥尔顿课程节选

Ms. COX: Well, I can tell you there is a huge denial factor at play here.

NPR: Women Of Color Lag Behind In Wealth

If you want a short cut into the heart of British culture, watch the British at play.

BBC: Go to a game in London

But one factor at play could be the record-low interest rates, said Sageworks analyst Regan Camp.

FORBES: Businesses Seeking Working Capital--Survey