英语:你该睡觉了It's time for you to go to bed.其中为什么you的前面还要加TO呢?

句型结构It's time for sb.to do sth 该是某人做某事的时候了,
所以It's time for you to go to bed
如 It's time for you to have dinner.你该吃饭了
很重要的哦,要掌握好