He explained that walking backward forces the tummy in and the back straight.
他解释说，倒退行走能帮助人收缩腹部，并且能保持背部挺直。
Keeping your back straight, push up with your arms until your arms are extended.
保持背部挺直，向上推你的手臂直到手臂伸直。
Squat down as low as you can, keeping your heels on the ground and your back straight.
深蹲至最低位置，脚跟贴紧地面，背部挺直。
Walk with a purposeful stride, with your back straight and with your head held up high!
大步走，挺直腰，抬起头。
Keep your posture straight and erect. Your head should be up, your back straight, and shoulders level.
保持您的姿势挺而直，抬起头，挺直腰，双肩水平。
So I'm going to ask you to sit down, get comfortable, get your feet on the floor, and have your back straight.
所以我首先要求大家舒适地坐下，双脚放在地面，背部挺直。
Bend forward slightly at the hip, keeping your back straight, until you feel a slight stretch in your hamstrings.
保持背部平直慢慢俯身，直到感觉腿筋拉紧。
Have your front leg straight your arms comfortably extended but not locked out your back straight and your head up.
前腿伸直，手臂自然伸展，但是不要停止运动，抬头挺胸。
Set your feet shoulder-width apart, and keep your knees slightly bent, back straight, and eyes focused straight ahead.
双脚与肩同宽，保持膝部稍弯，后背挺直，双眼注视前方。
I had to sit on my stool with back straight and upright, correctly holding the brush, so I loved making random drawings.
而我却得挺着腰、直着背、握着笔、坐在小板凳上，所以我还是喜欢乱画。
Keep your back straight, head up and turned towards the target, and straighten your bow arm, but keep the elbow unlocked.
保持背部的挺直，头转向目标，伸直你的持弓臂，同事保持肘部的放松。
We taught the second boy, who was writing his homework on a dwarf table when we entered, to stand with his back straight, head held up.
我进入第二个男孩子的家时，他正趴在家里的矮桌上写作业，我教他挺直了背，抬起头，标准了写作业的姿势，为了他的身体健康。
Elongate your spine as if a thread extending from the top of your crown was pulling your head, neck and back straight up towards the sky.
伸展你的脊柱，好像有一根线从头顶直直的往上拉你的头，脖子和后背。
Lifts: Seated in a chair with your back straight and your feet on the floor, squeeze knees together and gently bring them toward your chest.
举腿：在椅子上坐直，脚放在地板上，然后把膝盖弯曲尽力向胸靠拢。
Pitchford points out several form faults: "You want to keep your back straight and not allow the knee to drift forward ahead of the stance leg.
Pitchford指出许多种错误动作： “你应该保持背部挺直，膝盖不应该向前超过支撑腿。
Try a simple meditation technique where you focus on your breathing. Sit in a comfortable position with your back straight, and close your eyes.
试试这个专注于呼吸的简单冥想方法：找一个舒适的位置坐下，挺直背脊，然后闭上眼睛。
Try a simple meditation technique where you focus on your breathing. Sit in a comfortable position with your back straight, and close your eyes.
当你屏住呼吸时，尝试学会一种简单沉思的技巧。在一个舒服的地方坐下，挺直腰板，然后闭上你的眼睛。
Far from looking old and frail, the silver-haired actor, model and artist wore a crisp white shirt and black jeans, his back straight and his eyes glittering with humor.
这个银发的演员、模特和艺术家身穿一件洁净干练的白衬衫和一条黑色牛仔裤，他的背很直，眼睛闪烁着幽默。
I wrote back straight away, saying that I didn't have those kind of finances and pointing out that I had no reason to believe the deal would be kept even if I did send the money.
我立马给他回信说，我可没这笔闲钱，并且即便给你钱了，你你也不能保证不再盗我的号。
"He is a highly-rated player but he has a lot of competition and he is in a position that if he comes back straight away it will be very hard for him to play," said the Arsenal manager.
他是一个高水平的球员，但如果回到球队，在这个位置他会面临激烈竞争，这对他来说将很困难。
It was so happened: during the rural busy season the team leader did not want me to plough instead he let me plant rice seedlings. Consequently I was unable to have my back straight very often.
这事经过如下：农忙时队长不叫我犁田，而是叫我去插秧，这样我的腰就不能经常直立。
It was so happened: during the rural busy season the team leader did not want me to plough, instead he let me plant rice seedlings. Consequently I was unable to have my back straight very often.
这事经过如下：农忙时队长不叫我犁田，而是叫我去插秧，这样我的腰就不能经常直立。
Otherwise I might just have gone straight back to Connecticut, where Will was house-sitting for me.
否则我可能直接回康涅狄格州了，威尔正帮我看房子呢。
Standing with feet shoulder-width apart and cradle baby with both arms. Keeping a straight back and repeat deep knee bends.
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。
Then Doug went back into the hallway and stood there looking straight up at the light.
然后，道格回到走廊，站在那里，直视着那道光。
If your break was partly for stress-relief, there's no sense in coming straight back to the usual busyness!
如果你的间歇原因是为了释放压力，那就没有意义直接回到日常的事业之中了！
Schematron currently doesn't offer the possibility of reporting straight back to the application.
Schematron目前不能直接将报告返回给应用程序。
Keep your front shin vertical, back knee straight, back heel lifted, and chest lifted.
保持前面小腿垂直地板，后膝伸直，后脚跟离地，胸腔上展。
Keep your front shin vertical, back knee straight, back heel lifted, and chest lifted.
保持前面小腿垂直地板，后膝伸直，后脚跟离地，胸腔上展。
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