young people need to sleep at least eight hours a day同义句

young people need to sleep at least eight hours a day同义句 have at least eight hours' sleep 的同义句 everyone need to have at least eight hours‘ sleep a night. To sleep at least eight hours every day is very necessary fo We need to sleep for at least 8 hours every day.（划线提问） ___ _ people need to sleep nine hours at least这句话有没有语法错误? School students need eight hours of sleep a day,____? have at least eingt hours'sleep 的同义句 students should have at least eight-hour sleep a night.改为同义句 We should sleep at ( ) for eight hours a day You need to keep your son ____ at least mine hours a day. most people need at least eight hours and some什么,填什么?many,mo