To complain about too often is bad for you为什么要加个about

To complain about too often is bad for you为什么要加个about the workers often complain about ( )【work】for too long every students often complain teachers too much homework a.about,t complain about complain for complain at complain的区别 complain to sb about sth? complain of ,complain to,complain about的意思及区别 complain to,complain about,complain of 三者有何区别? 是complain to sb for sth还是complain to sb about sth? Don't complain too much about your problems.为什么用too much 转换：It's bad for you to sleep too much.( ) ( ) ( ) is bad for you have nothing_____(complain)about,do you? 改病句,急用!1.Shouldn’t complain about it2.She is care about you.