Translation of "Gaining" in Chinese

He has been gaining weight.

他体重上升了。

- He's stalling for time.
- He's gaining time.

他正在拖时间。

Tom is gaining on us, isn't he?

汤姆快跟上了，不是吗？

- He has been gaining weight.
- He has gained weight.
- He gained weight.

他体重上升了。