他挺直腰，把双手插进衣兜里。
艾米挺直身子，举起了身上的担子。
鼻子挺直，嘴唇宽厚性感。
那3个人挺直了腰站着等。
保持双臂和双腿挺直和强壮。
一阵笑声使他挺直身子，向四周看了看。
A burst of laughter made him straighten himself and look round.
坐着的时候后背要挺直。
双脚分开与肩同宽，双臂抱着婴儿。保持背部挺直，重复深膝弯曲。
Standing with feet shoulder-width apart and cradle baby with both arms. Keeping a straight back and repeat deep knee bends.
每当我试图弯腰让自己看起来更矮时，他就会告诉我：“挺直腰板，艾丽莎。”
Whenever I tried to bend myself in order to appear shorter, he would tell me, "Stand straight and tall, Alisa."
使双腿挺直，直到他们完全伸展开。
他换成了一个挺直的姿势。
我挺直了腰杆面对着他。
她挺直地坐在床上。
重要的是：上背和颈部要挺直以支撑头部，这一点很重要。
It is crucial that the upper back and neck are held in an erect position to give support for the head.
一点声音也没有，他挺直了身子。
There was not a sound, and he drew himself up firmly to his full height.
观看升国旗时，我们应该挺直腰背。
When watching the raising of the national flag, we should stand straight with our backs.
他挺直了身子，比以往任何时候都更直。
克拉拉挺直身子，在她的朋友身边稳步走着。
他尽其可能挺直身子。
“我是玛丽·伦诺克斯。”小女孩说，一边挺直了身子。
"I am Mary Lennox," the little girl said, drawing herself up stiffly.
因此，通过挺直腰板，挺直肩膀来显示你对自己的信任是很重要的。
Therefore, it's important to show trust in yourself by standing up tall and putting your shoulders back.
保持后背上部和颈部舒适挺直。
穿过排列成行的挺直黑黑的树。
手放在膝盖上，后背挺直，腹部放松。
Put your hands in your lap. The back is straight and the stomach is relaxed.
试着不要倚靠任何东西，挺直你的背部。
Try not to lean against anything and straighten out your spine (back).
一个站得挺直，一个驼背。
上身要挺直，坚持几秒钟，然后换个脚。
With upper body straight, hold for a few seconds and move it to the side; hold and extend it behind you.
挑一把竖直的椅子，坐好，保持脊椎的挺直。
Choose an upright chair and sit well back so that your spine is straight.
挺直腰杆，抬起头，与他人进行眼神的接触。
保持背部挺直，向上推你的手臂直到手臂伸直。
Keeping your back straight, push up with your arms until your arms are extended.
应用推荐