Just get off my back, will you!

请别烦我了好吗！

《牛津词典》

He rubbed oil into my back.

他在我的背上抹上了油。

《柯林斯英汉双解大词典》

I stiffened my back and faced him.

我挺直了腰杆面对着他。

《牛津词典》

When I am facing a lot of pressure at work, my back and neck will start to hurt.

VOA: special.2010.01.24

I tie a spring to my back and I anchor it to the wall and see how much the spring stretches before the two forces balance.

我把弹簧一端系在背后,另一端固定在墙上,观察两个力平衡时弹簧的伸长量

耶鲁公开课 - 基础物理课程节选

My back hurts. And we have a lot to wash.

我的背受伤了。我们有很多东西要洗。

Do you mind 实战 - SpeakingMax英语口语达人

Been walking my mind to an easy time, my back turned towards the sun.

NPR: James Taylor Gets Ready for Summer Tour

Mr. MERIC LONG: (Singing) Take this hammer-handed heart, And pull it off my back.

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' Then I turned around and gave her my back to climb on to.

CNN: Tahrir's bodyguards fight to 'cure Egypt's disease'