It has been discovered by many to be an excellent insect repellent.

它已发现了许多人是一个很好的驱蚊剂。

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It has been discovered any major abnormal transaction and has not improved it.

经发现有重大非常规交易，尚未改善者。

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It has been discovered that drinking tea does a lot of good to people's health.

人们发现饮茶对人们的健康有很大的健康。

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But it is the first time an amino acid has been discovered on a comet.

VOA: special.2009.09.30

Aristotle writes in Book II of the Politics that the world is eternal and everything in it has been discovered.

亚里士多德在《政治学》第，II，册中提到,世界无穷止境,其中所有事物都已创建。

耶鲁公开课 - 政治哲学导论课程节选

Although, I said, insurance was effectively discovered or invented in the 1600s, it has been slow to grow because they didn't have the well-defined-- all of the inventions yet.

尽管我说过，保险实际上,是在17世纪的时候被发现或者发明的，但它的发展非常缓慢,因为人们无法确切定义-,这种被发明出的东西。

耶鲁公开课 - 金融市场课程节选

It has been discovered that the Airwave radio system's signal is variable on the ground floor.

BBC: Suffolk Police radio fault at Landmark House in Ipswich

It has been discovered in Ohio, Alaska, California, Hawaii, Idaho, Nevada, Oregon, Washington and Montana.

CNN: Filter cleans arsenic-tainted water

Recently, however, it has been discovered that they also have different boiling points.

ECONOMIST: Evanescent or evergreen?