Often portrayed as longstanding engineering wisdom, "If It Ain't Broke, Don't Fix It" posture only promotes complacency.

这句话老少相传，可谓工程智慧的真实写照，然而，“如果没有坏，就不要修复它”只会滋生得过且过的情绪。

youdao

Only a moment before she had been listening with some complacency, remembering her old affection for him.

就在一分钟之前，她还在悠然自得地听他说话，未忘旧情。

youdao

The Argentinian has only to cast his mind back to last season's loan spell with Milan to negate any thoughts of Chelsea complacency.

阿根廷人只能回忆起他上个赛季租借在米兰的时光去打消任何切尔西自鸣得意的念头。

youdao

It not only confronts the professional complacency of the educational establishment but, more dangerously, it challenges the cherished myth of the uniformly adequate local school.

ECONOMIST: Bagehot

Destroy the knowledge base on which all of mankind's scientific progress has been built by guaranteeing that such learning is confined to only a few, and spread ignorance and complacency among the many.

FORBES: Magazine Article

It seems reasonable to conclude that English is the only language you need to master, but this complacency breeds catastrophe.

FORBES: Language Learning Helps Businesses Compete Globally