一涉及做事，他便不中用了。

When it comes to getting things done, he's useless.

《牛津词典》

老妇人说她年纪大了，不中用了。

The old lady said she was lamed by age.

youdao

一涉及到做事，他便不中用了。

When it comes to getting things done, he is useless.

youdao

他认为自己太老了，已经不中用了。

He thinks he is too old and has already outlived his usefulness.

youdao

他到了70岁终于意识到自己不中用了。

At 70 he's finally realized he's getting past it.

youdao

他到了70岁终于意识到自己不中用了。

At 70 he's finally realized he's getting past it.

youdao