区别辨析 keep one's bed, keep one's/the house, take to one's bed, be laid up, be confined to bed, be (ill) in bed (with a disease), be down (with a disease), come down (with a disease) 与 go down (with a disease)
(1) keep one's bed, take to one's bed都是指“卧病在床”;take to one's bed还可用于因年老体衰而卧床不起。