Americans sleep less than is good for them.求翻译

Americans sleep less than is good for them.求翻译 Americans sleep less than is good for them这句话怎么分析 改错：You should eat less ,drink less and sleep much. I never sleep for less than nine hours.中文是什么? sandy sleep less than 9 hours every day 对 less than 提问( )( )( )( )sandy( )every day Why don't you sleep less during the day?（改为同意句） ( )( )sleep less during the day? 括号内填词,每空一词 About one in three Americans has a problem with sleep. one in three是三分之一还是三个中有一个? sleep sleep sleep sleep I have much homework to do every day so i have (little)sleep less为什么 People who sleep ___ six hours a day.是填fewer than还是less than We shouldn't sleep[ ] than eight hours a night.是 less 还是 fewer为什么? 翻译句子：If you put on weight ,eat and sleep less. for后跟一段时间的时候可否省略?可以说 They sleep less than nine hours吗 people tend to need less sleep as they get older属于什么英语句型? the doctor told the child ______(eat) less and _____ (sleep)more .