词典释义：
win a victory over (someone) in a battle or other contest; overcome or beat
（战斗或其他比赛中）击败，战胜（某人）
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Garibaldi defeated the Neapolitan army .加里波第击败了那不勒斯军队。
prevent (someone) from achieving an aim
挫败（某人），使（某人）落空
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she was defeated by the last steep hill .她没能越过最后一座陡峭的小山。
prevent (an aim) from being achieved
阻止达成（目的），使（目标）无法实现
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don't cheat by allowing your body to droop — this defeats the object of the exercise .不要弯曲身体，那是偷懒——这样会达不到锻炼目的的。
reject or block (a motion or proposal)
反对，妨碍（动议或提议）
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the amendment was defeated .修正案被否决了。
be impossible for (someone) to understand
使无法理解
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this line of reasoning defeats me, I must confess .这样的推理我无法理解，我必须承认。
【律】 使无效，废除。
an instance of defeating or being defeated
击败，被打败
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a 1-0 defeat by Grimsby 1比０被格里姆斯比队打败
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[mass noun]
she had still not quite admitted defeat .她还是没有完全承认失败。
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defeat sb/sth 击败/战胜...
真题例句：
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be defeated 被击败
真题例句：
"late Middle English （in the sense ‘undo, destroy, annul’）： from Old French
