它肿的十分厉害。

It was extremely swollen.

youdao

当半月板损伤的时候，它肿了起来，膝盖里的水都会阻碍它，它现在很不坚固。

When I injured it, it was swollen up and all the water inside the knee is disturbing it and it's not stable right now.

youdao

所以我到外面而且玩得很痛快，甚至跳了更多的舞。隔天，它肿得像颗葡萄柚。

So I went out and had fun, went dancing on it even more. The next day, it swelled up like a grapefruit.

youdao