To reduce air pollution, our city has put more shared-bicycles into use.

为了减少空气污染，我们的城市投入使用了更多的公共自行车。

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Everything has its merits and what should be used is to put their merits into full use.

任何事物都有其优点，使用它们就是充分利用其优点。

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The nation now has 142 airports, with another 100 airports expected to be built and put into use by 2020.

目前全国机场数量达142个，到2020年末，又将会有100个新建机场建成并投入使用。

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Meanwhile, Warren has put his own advice to good use in the majors, blossoming into an important piece of the Yankee pitching staff.

WSJ: Matt Harvey's Yankee Buddy

O'Mara said he has put the money into a trust he controls until a final decision is made about its use.

CNN: Judge delays decision on Zimmerman contributions

All of that has boiled over into a stock decline and increasing pleas by investors to put more cash to use.

WSJ: Apple Cash Pile Sets Off a Battle