用处不大
be of little use
说明新工具的用处
explain how new tools are used
这个东西毫无用处。
This thing is of absolutely no use.
这还会有用处。
This can still be of use.
争吵有什么用处？
What's the use in quarrelling?
他出的主意会有什么用处!
What use are his opinions?
这不会有用处的。
This will not be of any use.
每件东西都有它的用处。
Everything has its use.
求人有什么用处，应当自己动手。
It's no use asking others. One should do things oneself!