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 n. A reflex contraction of the quadriceps muscle resulting in a sudden involuntary extension of the leg, produced by a sharp tap to the tendon below the patella; patellar reflex.
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