At present, throughout the world, over 80% of the land that is suitable for raising crops is in use.

目前，在世界范围内，80%以上适合种植农作物的土地都在使用中。

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An adequate warning system is in use to warn all shores likely to be reached by the waves.

一套完备的预警系统被用于向所有可能被海浪触及的海岸发出警报。

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It is in use in 400 shops right now.

它现在在400家商店中得到应用。

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The use of scientific knowledge in legal cases is called forensics, from the Latin term for a public forum.

VOA: special.2009.10.03

Speech is the way in which we appropriate, deploy and make use of language, and Saussure calls that "parole."

话语是我们使用语言，分配部署语言的结果，索绪尔叫它，个人语言“

耶鲁公开课 - 文学理论导论课程节选

But still is very professional and you can use it in any setting, business or casual.

但它也同样可以是很专业的表达，可以用在商务或是生活的各种语境。

Is it okay 课堂 - SpeakingMax英语口语达人

See the video below to see how fun, fast and easy Polar is in use.

FORBES: Move up http://i.forbesimg.com t Move down

Volume buttons on the remote offer a convenient way to control audio while private listening mode is in use.

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And once the technology is in use, I think it is possible that the costs will go back up.

FORBES: Why You Can't Have Your $1,000 Genome