(1)合作(work or act together with sb for a common purpose)[I，I+prep(with)(on/in)，I+prep(with)+to-inf]：refuse/agree to～拒絕/同意合作;It's impossible to～with such a person.和這樣的人是無法合作的。～(with sb) on a project(與某人)合作搞一個(gè)方案;～(with sb) in an attempt (to do sth)/a task/a fight(與某人)合作試圖做某事/承擔(dān)一任務(wù)/進(jìn)行斗爭;～(with a friend)in raising money(與朋友)協(xié)同集資;～(with another doctor)in performing an operation(與另一名大夫)合作做手術(shù);〖同〗 participate;〖反〗oppose，conflict;
(2)配合，協(xié)助(作)(be helpful and do as one is asked)[I]：“If you～we'll let you go，” said the police officer.“你如很好配合，我們會(huì)放你走。”警察說。
→co(-)′operator n 合作者;co(-)?ope′ration n 合作;協(xié)助;co(-)′operative adj 合作的;n 合作社;co(-)′operatively adv 合作地