membership
n. 会员身份，会籍；会员数；（全体）会员
复数 memberships
例句
Membership almost doubled in two years.
两年内会员数目几乎翻了一番。
《牛津词典》
She had allowed her membership to lapse.
她的会员资格期满终止，没有再续。
The club has a membership of more than 500.
俱乐部的会员人数超过了500名。
