complain of ,complain to,complain about的意思及区别

complain of ,complain to,complain about的意思及区别
complain of ,complain to,complain about的意思及区别

complain of ,complain to,complain about的意思及区别
complain of 后加something 对某事抱怨
complain to 后加somebody 向某人抱怨
complain about 对某人 某事抱怨