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impotence ['impətəns]

n. 无力,虚弱,无效,阳萎

the quality of lacking strength or power; being weak and feeble
[同] impotence, impotency, powerlessness
[反] power, powerfulness
an inability (usually of the male animal) to copulate
[同] impotence, impotency
[反] potence, potency

　以下网页可能有助于你对本词条的理解：

Some while ago I read a newspaper story saying male cyclists who rode a lot risked impotence because of the damaging effect of the saddle on their reproductive organs. 查看全文
【注意】SMOKING CAUSES IMPOTENCE: Research shows that smokers are 50% more prone to erectile dysfunction and decreased fertility.查看全文

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