sapped
[sæpt]
adj.
受冰川作用侵蚀（或裂碎）的;
v.
逐渐削弱（某人[某事物]的力量、活力等）( sap的过去式和过去分词 );
逐渐消耗（某人的力量、活力等）;
例句:
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Analysts say the recession in Japan has sapped investor confidence.
分析家称日本的经济衰退已经打击了投资者的信心。
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The series of steep hills sapped the cyclists'strength.
一连串坡度很大的小山耗尽了骑车人的气力.
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Constant rejection has sapped her will.
不断的被拒绝逐渐使她丧失了信心.
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A crazy building, sapped and undermined by the rats.
来自Dickens
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What has sapped artistic creativity and innovation in the arts?
来自WSJ
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Morale was sapped further by big budget cuts.
来自THETIMES