没必要的英文

It's unnecessary . It's not necessary .You don't have to (do that ).No need (to do that ).Don't bother.都可以表达没有必要。

It is not necessary

no need 放轻松，老兄！你没必要这麽拼吧。Relax, man! There's no need for you to work this hard.我听到了，没必要粗暴地与我讲话。I heard you. There's no need to jump down my throat.他没必要现在做这艰苦的工作。He doesn't have to do the hard work now.没必要大喊大叫，请克制自己。No need to shout! Please try to control yourself.

there is no need to (do sth) unnecessar都是