pissed off表示非常生气，通常和be pissed off一起使用，下面是pissed off的三个用法：

Leave me alone, I'm pissed off!

放开我，气死我了！

He'd kept me waiting for an hour so I was pissed off to start with.

他让我等了一个小时，所以一开始我很生气。

She seemed a bit pissed off that she hadn't been invited.

她似乎有点生气，因为她没有被邀请。