The study called for each inmate to gain 25% of their body weight.这项研究要求每一位囚犯体重增加25%

gain weight:增加体重

This illness predisposes you to gain weight.

这种病就预设了你体重会增加。

People tend to gain weight on holidays.

人们常常在假期长胖。

In return, they were promised early release from jail.作为回报，他们可以提前出狱

release from:释放；解除

I could find release from anxiety.

我可以寻求忧虑的消除。

In the meantime, people continued to be attracted to any dieting fad that claimed it would work.同时，人们继续被那些声称有效的节食风潮所吸引

in the meantime:与此同时； 在此期间

I like skiing and in the meantime, I know it is very dangerous.

我喜欢滑雪，同时也知道这非常危险。

Two of the prisoners got stuck at 21%两个囚犯到了21%就没有进展了

get stuck:被卡在 ...； 被困住 ...

We got stuck in a terrible traffic jam in Taipei.

在台北我们被塞车困住了。