We must act as trainers in gyms in order to keep each other fit.

我们必须像健身房教练一样，让彼此保持身材。

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Act right away to keep safe.

立即行动以保证安全。

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The genes that control food intake and metabolism act to keep weight in a stable range by creating a biological force that resists weight change in either direction.

这个控制从食物中吸收的热量和新陈代谢功能以达到保持体重的基因创造出了一种可以避免体重变化的生理力量。

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They could keep for themselves the prestigious title of "chaste" even though they were obviously performing an act that almost anyone in an earlier period would assume disqualified them from being called chaste.

他们可以为自己享有这有声望的“贞节“称号“,尽管很显然他们所表现的行为,几乎早期的任何人都会认为,那是没有资格被称为贞节的。

耶鲁公开课 - 弥尔顿课程节选

And when possible keep the act steps up to date.

FORBES: Communications: Develop Your Flight Plan

In order to keep a random act of violence from being possible, the coping mechanism is most often to place blame.

FORBES: The Five Stages Of Public Grieving

His words of encouragement for our efforts are deeply appreciated and will, we hope, result not only in the redoubling of those efforts, but also in the enlisting in the fight to keep the Patriot Act strong and effective of millions of Americans for whom the Coalition speaks.

CENTERFORSECURITYPOLICY: President Bush meets with Patriot Act Advocates