共同合作
Coact \Co*act"\, v. t. [L. coactare, intens. fr. cogere, coactum, to force. See {Cogent}.] To force; to compel; to drive. [Obs.] The faith and service of Christ ought to be voluntary and not coacted. --Foxe. Coact \Co*act"\, v. i. [Pref. co- + act, v. i.] To act together; to work in concert; to unite. [Obs.] But if I tell you how these two did coact. --Shak.
coact v : act together, as of organisms