| 单词 | plummet |
| 释义 | plummet /plum"it/, n. 1. Also called plumb bob. a piece of lead or some other weight attached to a line, used for determining perpendicularity, for sounding, etc.; the bob of a plumb line. 2. something that weighs down or depresses. v.i. 3. to plunge. [1350-1400; (n.) ME plommet < MF, dim. of plomb lead; (v.) deriv. of the n. See PLUMB, -ET] Syn. 3. fall, dive, drop, swoop. |
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