She saw a beautiful coat but it cost an arm and a leg.(她看到了一件漂亮的上衣，但它的價格昂貴。)

It must have cost you an arm and a leg.(你一定為此花了很多錢。)

Train tickets aren't the only thing costing an arm and a leg in the summer holiday.(火車票不是暑假唯一價格昂貴的東西。)

Eating in hotels costs an arm and a leg.(在飯店里吃飯費用很大。)

No irritation so far, rinsed smooth, and doesn't cost an arm and a leg.(目前為止還沒有刺激或過敏，洗過之后很光滑。)

The house must cost the couple an arm and a leg.(這個房子肯定花費了這對夫婦很多的錢。)

The house must have cost the couple an arm and a leg.(這房子一定讓這對夫婦花了不少錢。)

An arm and a leg.(一個手臂和一個腿。)

These resort hotels charge an arm and a leg for a decent meal.(在這些旅游勝地的餐館像樣地吃一頓要花很多錢。)

To get a decent apartment these days in New York you have to pay an arm and a leg.(今天想在紐約住棟像樣的公寓，必須付出極高的代價。)