Hair of the dog:

狗的毛發(fā) ×

醒酒液 √

例句：

I've still got a bad hangover. Some hair of the dog would probably make me feel better.

我到現(xiàn)在頭還是很痛。來點解宿醉的酒或許可以讓我舒服些。

Fool around:

到處愚蠢 ×

虛度光陰 √

例句：

If you go to college, you must work hard, not fool around.

要是你上大學(xué)，就得好好學(xué)習(xí)，不能虛度光陰。

She was dressed to kill:

她打扮得要去殺人 ×

她打扮得令人神魂顛倒 √