vt. 增补…为新成员

co-opt \co-opt"\, coopt \co*["o]pt"\, v. t. [See {Co["o]ptate}.
Cf. F. coopter.]
To choose or elect in concert with another. [R.]

Each of the hundred was to co["o]pt three others.
--Jowett
(Thucyd.).

2. To choose or elect as a colleague or fellow member of a
group; as, The church members co-opted individuals from
similar backgrounds to replenish the congregation.
[PJC + WordNet 1.5]

3. To assimilate (a smaller group) into a larger group.
[PJC]

4. To persuade an opponent to join one's own side.
[PJC]

5. To appoint summarily (with or without the appointee's
consent).
[WordNet 1.5]

6. To appropriate (something rightly belonging to another) as
one's own; to preempt; as, to co-opt someone's name.
[PJC]