败坏 bàihuài to ruin
to ruin; to corrupt; to undermine
How to remember 败坏: 败 failure + 坏 bad = to ruin.
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How it is used
- To corrupt/ruin (morals, reputation, standards) - 败坏风气 (bàihuài fēngqì) to corrupt social morals; 败坏名誉 (bàihuài míngyù) to ruin sb's reputation.
- Applies to abstract things - morality, reputation, discipline - not physical breakage.
- As an adjective: 道德败坏 (dàodé bàihuài) morally depraved. Strongly negative.