/kəmˈpleɪn ||; kəmˈplen/verb[I] 1 complain (to sb) (about sth/that...) to say that you are not satisfied with or happy about sth 抱怨；投诉: People are always complaining about the weather. 人们老在埋怨天气。We complained to the hotel manager that the room was too noisy. 我们向酒店经理抱怨房间太吵闹。 ☞Look at the notes at grumble and protest. 参看grumble及protest的注释。
2 (formal 正式)complain of sth to say that you have a pain or illness 诉说（病痛）: He went to the doctor, complaining of chest pains. 他去看医生，跟医生说他胸部疼痛。