/kəmˈpleɪnt ||; kəmˈplent/noun complaint (about sth);
complaint (that...) 1 [C] a statement that you are not satisfied with sth （口头或书面的）投诉: You should make a complaint to the company that made the machine. 你该向机器制造商投诉。
2 [U] the act of complaining 抱怨；投诉: I wrote a letter of complaint to the manager about the terrible service I had received. 我去信经理投诉服务太差。Jim's behaviour never gave the teachers cause for complaint. 吉姆表现不错，老师们没有不满意的理由。
3 [C] an illness or disease 疾病: a heart complaint 心脏病