Time is so valued in America, because by considering time to be important one can clearly achieve more than if one "wastes" time and doesn't keep busy.

在美国，时间如此宝贵，因为将时间视为重要的事情的人，显然比“浪费”时间而无所事事的人能取得更大的成就。

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Remember, your mind is not a bad guy, but it does love to keep busy!

记住，你的意识可不是个坏家伙，但它总是喜欢保持忙碌。

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Domestic robots keep busy at the Korea Institute of Science and Technology.

在韩国科技研究中心，家用机器人忙得不可开交。

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Orders for commercial airplanes are expected to be lower this year, as airlines cope with an expected America's Boeing executives in Dubai put on a brave face, saying that fulfilling back orders will keep their production lines busy.

VOA: standard.2009.11.15

and that will keep you busy for a good couple of days.

就会让你开心地忙好几天。

卡姆登最棒 - SpeakingMax英语口语达人

At least business travelers can keep busy between transfers: O'Hare came in second in services for business travelers.

CNN: Which U.S. city has the best airport?

Part of the reason I was able to keep busy was that I would accept virtually any gig, even if it didn't pay.

FORBES: Magazine Article

One explanation is that the immune system needs to keep busy.

ECONOMIST: Plagued by cures