学习资料

[意       思]vi. 变弱，变衰弱
[例]  His sense of duty never weakens. 他的责任感从不会减弱。
vt. 削弱，减少，减弱
[例]  We never weaken our efforts in face of difficulties. 我们在困难面前从不松劲。

更多意思

vt.1.  使虚弱, 使衰弱,减弱, 削弱
2.  动摇,犹豫

vi.1.  虚弱, 衰弱, 减弱
2.  动摇,犹豫

参考例句

1.	They watched her gradually weaken as the disease progressed.
	他们观察到她随着病情变化身体也渐渐衰弱下去。
2.	This will weaken the defense.
	这将削弱防务。
3.	We never weaken our efforts in face of difficulties.
	我们在困难面前从不松劲。
4.	weaken [undermine] the king's authority
	削弱[逐渐损毁]国王的权力
5.	weaken the effect of
	削弱……的影响；减弱……的效果
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