短語(yǔ)詞組短語(yǔ)bed d rest 床靠背active bed -rest 主動(dòng)臥床休息bed -rest t 床靠背head -down bed-rest 頭低位臥床bed rest time 臥床時(shí)間get bed rest 臥床休息bed but not rest 床鋪 返回 bed rest