He should know better than to hope that...

他应该知道，抱这样一种希望是不现实的。

youdao

He should know better than anybody: GE has been handing over technology in everything from rail locomotives to antipollution equipment to gain access to the domestic Chinese market.

他应当比任何人更了解：通用电气一直在提供从铁路机车到防污染设备等各种技术以进入中国的国内市场。

youdao

But two wrongs do not make a right. Mr. Martin, an honourable man, should know better than to stoop so low, especially while he is delivering homilies on civility.

一方不高明并不等于另一方也理应做下三烂。马丁是个值得尊重的人，他不应该降低自己的人格，尤其是当他自己正在推崇文明行为的时候。

youdao

Neil Smith should remember that Mr May and Taylor actually wrote the music that was being performed and surely they would know much better than he how it should be performed.

BBC: Robert De Niro