rhyme or reason

1. (用于否定句)(诗的)韵味或涵理

2. (用于否定句)逻辑性, 条理; 道理

His wife scolded him endlessly, without rhyme or reason.

他的太太莫名其妙地骂他个不停。

There was no rhyme or reason in Uncle George's job hunting.

乔治叔叔没头没脑地四处找工作。

There doesn't seem to be any rhyme or reason in his demands.

他的要求真是毫无道理。