没有用

• no good
• otiosity
• inutility

例句

1. 向他解释理由是没有用的。
   It is no use explaining the reason to him.
2. 没有用的。
   It's no good.
3. 抱怨是没有用的。
   It's no good complaining.
4. 要求和她定个约会也没有用。
   It is no good asking her for a date.
5. 等别人替你做决定是没有用的。
   It is no good waiting for other people to make your decision for you.