如果我不赶快离开这闷热的房间，我会睡着的。

I'll fall asleep if I don't get out of this stuffy room soon.

youdao

我会马上睡着的。

I fall asleep right away.

youdao

从语义学说，我会说第一组是睡着，第二组是尝试睡着。

In terms of semantics, I’d say that the first group is asleep, while the second group is trying to sleep.

youdao