He does a lot of weight training.

他进行大量的举重训练。

《牛津词典》

He's lost a lot of weight—he's three kilos lighter than he was.

他的体重减了许多—比以前轻了三公斤。

《牛津词典》

I have lost a lot of weight.

我体重减轻了不少。

《柯林斯英汉双解大词典》

For this role,Elizabeth Taylor gained a great deal of weight in order to look the part of the aging wife of a college professor.

VOA: special.2011.04.03

STUDENT: PROFESSOR: Yeah. There's a branch we could finish here, but since we're out of weight we sort of know we're going to be done.

学生：【听不见】,教授：是的，我们可以在,这个分支结束，但是因为我们重量超标了,我们知道我们只能结束。

麻省理工公开课 - 计算机科学及编程导论课程节选

And if you want to lose body fat as far as that kind of weight, that's the way to do it.

如果你想要减掉脂肪和重量，这就是方法。

要拥有好身材 - SpeakingMax英语口语达人

But the effects of weight loss on health care costs are tough to measure, says Burton.

FORBES: Watching The Corporate Waistline

In fact, three squad members were already dropped this season because of weight gain.

FORBES

Van Daff loves to see people who have lost a significant amount of weight become trainers.

CNN: Mom's last words inspire 85-pound loss