協力

(1)cooperate as a traitor; "he collaborated with the Nazis when they occupied Paris"

(2)反逆者として協力する

(3)work together on a common enterprise of project; "The soprano and the pianist did not get together very well"; "We joined forces with another research group"

(4)計画の共同作業を一緒にする

(1)The soprano and the pianist did not get together very well

(2)ソプラノとピアニストの共演はそれほどよくなかった

(3)We joined forces with another research group

(4)私たちは別の研究グループと協力した