| 单词 | subgroup | 
| 释义 | sub·group    (sŭbgrp′)n. 1.  A distinct group within a group; a subdivision of a group. 2.  A subordinate group. 3.  Mathematics   A group that is a subset of a group. tr.v.  sub·grouped, sub·group·ing, sub·groups   To divide into subgroups.  | 
	
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