英语词汇“knee jerk”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	knee jerk
释义	knee jerk noun : an involuntary forward jerk or kick induced by a light blow or sudden strain upon the patellar tendon of the knee that causes a reflex contraction of the quadriceps muscle
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