I'm pissed off with the way they've treated me.

我讨厌他们那样对待我。

《牛津词典》

It's because I'm pissed off!

那是因为我很生气！

youdao

Next time I'm pissed, I lay my fist at the drywall Next time.

下次我生气，我躺在我在砌墙下次拳头。

youdao

"I'm pissed off every time I see a photograph of a board of directors and they are all old white haired guys, " Peters explains.

CNN: Guru Peters still reinventing himself

I'm pissed at Bernie.

FORBES: Managing Money

And I'm really pissed because there's--we can't do too much, you know.

NPR: Remembering Army Pfc. Kenneth Zeigler