n. 合作社社员, 合作者

[经] 消费合作社社员, 合作者

[ noun ]
an associate in an activity or endeavor or sphere of common interest
<noun.person>
the musician and the librettist were collaboratorssexual partners

Cooperator \Co*["o]p"er*a`tor\, n. [L.: cf. F. coop['e]rateur.]
One who labors jointly with others to promote the same end.
``Co["o]perators with the truth.'' --Boyle.