n. 群组, 组；用户组；团体（group的复数形式）
n any number of entities (members) considered as a unit
n (chemistry) two or more atoms bound together as a single unit and forming part of a molecule
n a set that is closed, associative, has an identity element and every element has an inverse
v arrange into a group or groups
v form a group or group together
- 原型: group
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