无缘无故

méi yǒu wú yuán wú gù de ài yě méi yǒu wú yuán wú gù de hèn

没有无缘无故的爱，也没有无缘无故的恨。

There is no gratuitous love or groundless hate in this world.

wú yuán wú gù fā pí qi

无缘无故发脾气

rage over nothing

wú yuán wú gù de yōu lǜ

无缘无故的忧虑

groundless worry

wú yuán wú gù de gōng jī shì bù kě róng rěn de

无缘无故的攻击是不可容忍的。

Unprovoked displays of aggression cannot be tolerated.

wǒ bù néng ràng nǐ wú yuán wú gù de chī cù

我不能让你无缘无故地吃醋。

I won't let you feel jealous without any reason.