(informal)be useful on certain occasions or in certain respects
(非正式)总会有用
be unable to find a purpose for; have no need for
用不着；不需要
he had no use for a single glove.
单个手套对他没用。
use for a purpose
使用，利用
(formal)established custom
(正式)习俗惯例
quote someone as an authority or reference
引用某人名字；打出某人旗号
consume or expend the whole of something
用完；耗尽
the money was soon used up.
钱很快就用光了。
To consume completely
用光，耗尽
used up all our money.
用光了我们所有的钱