If you are time poor, you need run for only half the time to get the same benefits as other sports, so perhaps we should all give it a try.

如果你没有时间，只需跑一半的时间就能获得和其他运动一样的好处，所以，我们或许都应该尝试一下跑步。

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I get wicked headaches from 3d movies, and all the blockbusters in town are showing 3d-only half the time.

我总是在看3d的时候头剧疼，但城市热映的电影都是只以3d的形式播放，至少一半的时间。

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Allegheny Technologies, a speciality metals producer, is running its plants only half the time and furloughing its staff for the rest of the month.

特种金属生产商阿勒格尼技术公司的工厂，每月仅有一半时间开工，余下的时间内员工都被暂时解雇。

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Guards sometimes abandon their posts, and at one location an alarm system works only half the time.

CNN: A risk of loose nukes

But interferon-ribavirin regimens clear the most common strain only half the time at most and cause an array of nasty side effects.

FORBES: Magazine Article

Sadly, the main affordable weapon in the hospital's arsenal is pyrimethamine-sulfadoxine, a 30-year-old drug cocktail that works only half the time against drug-resistant strains common in this part of sub-Saharan Africa.

FORBES: A Cure for Neglect