| 单词 | plummet |
| 释义 | Word Frequency plummet(ˈplʌmɪt) verbWord forms: -mets, -meting or -meted 1. (intransitive) to drop down; plunge noun 2. another word for plumb bob 3. a lead plumb used by anglers to determine the depth of water Word origin C14: from Old French plommet ball of lead, from plomb lead, from Latin plumbum |
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