我平白无故挨了批评。

I was criticized without any reason.

我搞不懂他为什么平白无故给我钱。

I don't know why he gave me money without rhyme or reason.

聪明的人不会平白无故地浪费这么好的东西。

A wise man does not waste so good a commodity as lying for nought.

当你想到特定的人会感到焦虑，或是会平白无故地担心自己会撞到谁。

You get anxious when you think of certain people or get stressed at the thought of running into someone in an otherwise completely nonthreatening situation.

他们总是为每一件事去责备你，我的孩子，他们总是平白无故的寻人错处。

For every little trifle they blame you, my child. They are ready to find fault nothing.