knee-jerk的词源

英文词源

knee-jerk (n.)

patellar reflex, neurological phenomenon discovered and named 1876; the figurative use appeared soon after the phrase was coined.

中文词源

knee-jerk：本能反应的

knee,膝，jerk,摆动，颤动。比喻用法。

该词的英语词源请访问趣词词源英文版：knee-jerk 词源，knee-jerk 含义。