We'd better hurry or we'll be in for it.

我们最好赶快，不然要受罚的。

He will be in for it if he doesn't get home on time.

他如果不准时回家，势必倒霉。

When your father knows that, you'll be in for it.

如果你的父亲知道了，你就倒霉了。

The naughty schoolboy knows it is time for him to be in for it.

那淘气的男孩知道这次他该受罚了。

It's extremely rare for it to be this hot in April.

四月份就这样炎热是极其罕见的。