knee-jerk
n.
patellar reflex, neurological phenomenon discovered and named 1876; the figurative use appeared soon after the phrase was coined.
| 词汇 | knee-jerk |
| 词根词缀 | Online Etymology Dictionary knee-jerk n. patellar reflex, neurological phenomenon discovered and named 1876; the figurative use appeared soon after the phrase was coined. |
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