cost an arm and a leg
成語所屬單字arm
cost an arm and a leg — 慣用語
1. to be extremely expensive.
1.慣用語
釋義
非常昂貴；貴得嚇人
to be extremely expensive.
例句
Renting a flat in central Taipei can cost an arm and a leg these days.
The handmade leather jacket cost Lisa an arm and a leg, but she wears it every winter.