Without enough sleep , we all become tall two-year-olds .

睡眠不足，我们都会变成身材高大的两岁小孩。

i think sleeping was my problem in school.

if school had started at five in the afternoon,

i'd be a college graduate today.

上课打瞌睡是我学生时代的一大问题。

要是学校每天下午5点才开始上课，我早就大学毕业了。

Take a ride! You will enjoy it so much!