Most of what we see in the fashion shows is quite impractical for daily wear.
时装表演上我们所看到的大多数服装并不适合于做日常衣着。
Oil rigs have to be repaired frequently and divers,who often have to work in darkness a hundred feet under water,
钻井平台需要经常修理,潜水员常常要在水面100英尺以下摸黑工作,