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- You must straighten your back when writing at a desk. 写字的时候一定要挺直腰板。
- Straighten your back (up)! 把背挺直!
- When giving a salute, you must straighten your back and hold your head high. 行军礼的时候一定要做到挺胸抬头。
- Alert yourself, straighten your back, breathe the stale air out of your lungs, and direct your awareness into clear space to freshen your mind. 要保持清醒,背部挺直,呼出肺部污浊的空气,把你的觉醒力导向清明的虚空,清醒你的心。
- straighten your back(up)! 把背挺直!
- There is an insect crawling up your back! 有只虫子在你背上爬!
- Hold your head up and keep your back straight. 请把头抬起来，腰直起来。
- Straighten your knees with out locking them. 伸直膝盖但不要锁住膝盖。
- A massage may relieve your back pain. 按摩可能会减轻你的背痛。
- Lie on your back and lift up your legs eight times. 仰躺,抬起你的双腿八次。
- There is a worm creeping up your back. 有一条虫子在你背上爬。
- Stand still a moment, while I straighten your collar. 站一会别动，我替你把衣领拉直。
- Stand still a moment,while I straighten your collar. 站一会别动，我替你把衣领拉直。
- You'll make your back ache if you carry those heavy buckets. 如果你背那些沉重的桶，你的背会痛的。
- These tablets should clear up the trouble with your back. 这种药片能止你的背痛。
- Let it dress up your back, in summer stage heartily dance. 让它装扮您的背影,在夏季的舞台上尽情歌舞。
- Straighten your arms above your head and place one hand on top of the other. 伸直你的双臂超过你的头部,让在最前面的双手并拢合一
- If you lie on your back, you can look up at the sky. 如你仰卧着，你就可以观天。
- Lie down on your back and bend your knees up please. 请仰着躺下，把腿蜷起来。
- She talks about you behind your back all the time. 她总在背后说你的坏话。
