Use pillows to prop yourself on your side, or attach a tennis ball with a rubber band to the back of a T-shirt to keep from turning over on your back.

用枕头支撑着保持侧身躺，或者用橡皮筋在你体恤衫的后面系一个网球来防止你仰面躺着。

youdao

They stand back to/t?/ back.

他们背对背站着。

youdao

One Confederate officer, trying to prevent his troops from moving back, pointed to a group led by General T.J.Jackson of Virginia.

VOA: special.2009.08.27

STUDENT: PROFESSOR: Yes, thank you. All right, it is constant. You keep sitting back there where I can't get to you. Thank you very much.

学生：【不解中】,教授：是的，是常数，如果，就是常数,你坐在那儿一动不动我没法找到你。

麻省理工公开课 - 计算机科学及编程导论课程节选

so at the moment when I can't go back to see her, I go to training academies.

所以我不能回去找她的时候，我就去培训学校。

做头发是免费的 - SpeakingMax英语口语达人

They weren't back to back.

CNN: SHARE THIS

There's tremendous construction in Belfast, there's economic growth, there's increasing travel and commerce, I think people don't want to go back and I think they won't ever go back to what existed during the troubles.

BBC: News | BREAKFAST WITH FROST | Senator George Mitchell

Their home countries won't take them back or other countries aren't willing to take back men of - who have been called the worst of the worst for the past five years.

NPR: Deciding the Future of Guantanamo