“慷慨的吝啬鬼”是一种语词矛盾的说法。

A generous miser is a contradiction in terms.

《新英汉大辞典》

换言之，说一个社会没有这些费用是矛盾的说法。

In other words, to speak of a society without these costs entails a contradiction in terms.

youdao

这听起来像是一种矛盾的说法，因为安必恩是一种镇静剂。

It sounds like an oxymoron, since Ambien is in the family of sedatives.

youdao

Well,isn't this against Dalton?

这不是与道尔顿的说法矛盾了吗？

麻省理工公开课 - 固态化学导论课程节选