an arm and a leg

• n. 昂贵的价格(过高的要价)

an arm and a leg的用法和样例：

例句

用作名词 (n.)

1. When the shop assistant told her the price of the expensive fur coat,she never batted an eye.
   店员把昂贵的皮衣价格告诉他时，她连眼睛都不眨一下。