一项研究表明，大约一半的小学生可以调整他们每天的睡觉起床时间一小时，但更大的改变会成为一个挑战。

In one study, about half of school pupils were able to shift their daily sleep-wake schedules by one hour. But significant change can be a challenge.

youdao

一项研究表明，大约一半的小学生可以调整他们每天的睡觉起床时间一小时，但更大的改变会成为一个挑战。

In one study, about half of school pupils were able to shift their daily sleep-wake schedules by one hour.But significant change can be a challenge.

youdao

当然，在一个人都不太看医生的地方，我带七只小狗到车程一小时半以外的地方去看兽医，大家都以为我疯了。

However, in a place where the villagers rarely visit the doctor, they all thought I was insane for taking seven puppies an hour-and-a-half away to see a vet.

youdao

It's about maybe half an hour, one hour from Barbados and maybe another hour and half from Puerto Rico.

从巴巴多斯岛到那儿大概要半小时或一小时；从波多黎各到那儿则需要再花上一个半小时。

和纽约的留学生 - SpeakingMax英语口语达人

And if you are prepared to stand up for about two and a half to three hours to watch a play,

而且你要准备好了站上大约两个半小时到三个小时，去看一场戏剧，

莎士比亚环球剧院 - SpeakingMax英语口语达人