It's no use wishing for the impossible.
企求不可能的事情是徒勞無益的`。
It's no use shouting.
喊也沒有用。
I've no use for people who don't make an effort.
我厭惡那些不努力的人。
There's no use protesting, I won't change my mind.
抗議沒有用，我決不改變主意。
He's dead and it's no use wishing him alive again.
他死了，希望他死而復生是無濟於事的。