It's a short drill, because you'll run out of air, and need to stand up to breathe:.

这是一个短暂的训练，因为你会耗尽空气，需要站起来呼吸：。

youdao

It's a short drill, because you'll run out of air, and need to stand up to breathe:.

这是一个短暂的训练，因为你会耗尽空气，需要站起来呼吸：。

youdao