1650s, "a covering or protection for the knee," from knee (n.) + cap (n.). Meaning "bone in front of the knee joint" is from 1869; the verb in the underworld sense of "to shoot (someone) in the knee" as punishment is attested by 1975. Related: Kneecapped.
实用例句
1. Roll the leg inward until the kneecap faces the other leg.
卷腿膝盖向内,直至面临另一方面,另一条腿.
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2. It is unclear who social conservatives would rally around if they wanted to kneecap the front - runner.
如果,保守人士想阻碍朱利亚尼赢得选举,他们会转而助谁一臂之力尚且不明.
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3. Bynum injured his left knee on Jan. 13, suffering a bone bruise and briefly dislocated kneecap.
拜纳姆在1月13号比赛中左膝受伤, 骨头被撞, 膝盖骨暂时脱臼.
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4. Undead Female - " I heard a knee slapper once , and skipped my kneecap right across a lake. "
我听到我的膝盖响了一下, 然后 膝盖骨 就掉到湖里去了.
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5. Kay had dislocated her left kneecap in her semi - final match of the round robin tournament.
