不中用: useless; good for nothing; not good for use; without any talent or ability; unfit for anything; no good 短语和例子这铁锹不中用, 我去换一把吧。 this spade is no good. i'll go and get another one
中看不中用: be pleasant to the eye but of no use; all is not gold that glitters.; cheap and nasty 短语和例子这种器皿中看不中用。 this ware is suitable for decorative purpose but unsuitable for utility
