groups

名词 group:

any number of entities (members) considered as a unit

同义词：group, grouping

(chemistry) two or more atoms bound together as a single unit and forming part of a molecule

a set that is closed, associative, has an identity element and every element has an inverse

动词 group:

arrange into a group or groups

同义词：group

form a group or group together

同义词：group, aggroup