To see red 这个短语的意思是大怒，狂怒。

例句

The teacher will see red when he finds out you haven't done your homework again! He'll give you detention.

My mum saw red when I came in late for dinner.

I saw red and shouted when the boss complained about my work for the third time today.

请注意

如果你想说一个人很容易发火，可以用to fly off the handle 这个短语。

例句

When Simon told me he was going out for the third night in a row, I really flew off the handle and shouted at him.