1、complain：不及物动词， 抱怨，诉苦
He complained to me about the food.
他向我抱怨伙食不佳。
2、complain：不及物动词，申诉，控诉，抗议
He complained to the police of the boys stealing his apples.
他向警方控告那些男孩偷他的苹果。
3、complain：及物动词，诉说，申诉，控告[后面常跟从句]
He complained that the exam was too hard.
他抱怨考试太难了。
4、complain：诉说有…病痛;主诉
He complained of a headache.
他说头痛。
5、complain：实例用法
He came to complain about the volume of the music.
他过来抱怨音关趴乐的音冷薪杰量太高了。
6、complain：complain of sth 诉说（病情或痛苦）
She left early, complaining of a headache.
她说自己头祝调疼，很早就离开了。
