1 VERB （常指逐渐或反复）削弱，损害（情感、体制等） If you undermine something such as a feeling or a system, you make it less strong or less secure than it was before, often by a gradual process or by repeated efforts. （常指逐渐或反复）削弱，损害（情感、体制等）
SYN weaken, sabotage, subvert, compromise
2 VERB （常指间接地）削弱，损害，动摇（某人的地位或权威） If you undermine someone or undermine their position or authority, you make their authority or position less secure, often by indirect methods. （常指间接地）削弱，损害，动摇（某人的地位或权威）
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She undermined him and destroyed his confidence in his own talent. [VERB noun]
她暗中打击他，让他对自己的才华信心全无。
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The conversations were designed to undermine her authority so she felt that she could no longer work for the company. [VERB noun]
这些谈话有意削弱她的威信，这样她会觉得自己在公司干不下去。
3 VERB 破坏，损害（某人的努力或成功的机会） If you undermine someone's efforts or undermine their chances of achieving something, you behave in a way that makes them less likely to succeed. 破坏，损害（某人的努力或成功的机会）
| Word Partnership | Use undermine with: |
| N. | undermine government, undermine peace, undermine security 1 undermine authority 1 2 undermine confidence 2 |
| VERB. | threaten to undermine, try to undermine 1 2 3 |
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