| 单词 | coom |
| 释义 | coom /koohm/, n. Chiefly Scot. and North Eng. 1. soot; coal dust; smut. 2. dust, esp. sawdust or dust from a gristmill. 3. grease from bearings, axles, etc. Also, coomb. [1580-90; var. of CULM1] |
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