blue in the face
很生气
A:You are blue in the face, aren't you?
A:你面红耳赤的，生气了吗?
B:The cat has eaten my fish, I'll kill it.
B:猫吃了我的鱼，我要杀了它。
A:But supposing your son killed the fish, what do you think then?
A:假如你儿子弄死了鱼，那你会怎么想?
B:I'll beat him.
B:那我会揍他一顿。
A:So beat the cat, but don't kill it.
A:那么就把猫揍一顿，但是别杀它。