to act or work together for a particular purpose, or to be helpful by doing what someone asks you to do

A two-year old is likely to refuse to cooperate when you tell her to get dressed. 你让两岁的小女孩穿衣服的时候，她很可能不配合。

The two companies have cooperated in joint ventures for the past several years. 两家公司在过去几年中合作经营合资企业。

The Spanish authorities cooperated with the British police in finding the terrorists. 西班牙当局与英国警方相互配合搜捕恐怖分子。