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.
将你的肩胛挤到一起，专注于拉伸你的上背。
Squeeze your shoulder blades together and concentrate on stretching your upper back.
较大的靠背为上背、肩膀和低背提供了非常棒的支撑。
The larger backrest provides upper back and shoulder support as well as excellent lower back support.
如果你的肩膀和上背还会向颈椎挤压，说明你需要做更多的练习来加固根基。
If your shoulders and upper back are collapsing into your neck, you need further practice to build your foundation.
“你缺乏灵活性和延伸性的上背就会把压力加到你的后背和脖子上。”普莱斯说。
A lack of mobility and extension in your upper back will put.
这个身体蜷缩的姿势很容易让你的脖子、肩膀和上背塌掉，所以不要在这里停留太久。
Don't hold this position for long, because with the body drawn into a compact shape you will tend to collapse in your neck, shoulders, and midback.
预防：记得伸展和加强你的上背以缓解上背的紧张状态，因为你在办公室里总是让你的上背拱起。
Prevention: Remember to stretch and strengthen your upper back to compensate for all that hunching you do at the office.
如果你还没有完全的理解并熟练掌这个轻量级的腕、小臂、肩、上背的动作组合，你就不可能在完全式中拥有端正协调的体态。
If you haven't fully understood and accomplished the earlier work for the wrists, forearms, shoulders, and upper back, you won't come into proper alignment in the full pose.
严重的眼疲劳会导致长期的头痛，头部，颈部和上发背的肌肉疼痛，也可能会引起一个长期的问题近视。
Serious eye strain can lead to persistent headaches, muscle pain in the head, neck and upper back, as well as long term problems like myopia.
这完全不是想我们猜想的那样是靠死记硬背的,也许你上音乐课的时候,你的老师或和你妈妈会说,记下这一段,而这段音乐不是像那样靠死记硬背的
Well, it's not memorized as we think of it and you may have had music lessons along the way and your teacher and your mother said "Go memorize your piece." It's not memorized like that.
你不再和你的孩子一起玩耍，而是一个人坐在椅子上，因为背太疼了。
Instead of playing with your kids you sit on the bench because your back hurts too bad.
片刻之后，他从拐角绕了出来，转动着肩膀，然后在大门柱上蹭着背，就像一只熊靠着树那样。
A moment later, he rounded the corner, rolling his shoulders and then scratching his back on the doorjamb like a bear against a tree.
现在做身体部分，把它的头向下放在桌子上，抬起背，并把手臂放置在中间位置，就像顶部有一块大石头被压在下面。
Now take the main body part and place it head down on the table and lift up the back and place the arms in the middle like so: (a stone is holding down the top part).
“他们非常喜欢。”他一边说，一边在椅子背儿上把衣服仔细地叠起来，并甩手把它展平。
"They loved it," he said, carefully folding it over the back of a chair and smoothing it flat.
整个背贴着躺在地上，脚板放平在地板上，两手放在身体两侧。
Lie on your back, feet flat on the floor, knees bent, hands at your sides.
在电视上出现了默顿。它靠在神甫家的围栏上，打了个冷颤，弓起背，又打了个冷颤。
And there on the TV was Merton, leaning against the Rectory fence, shuddering, arching his back, shuddering again.
现在，最后一丝希望寄托在英国和美国同时进行的一项实验结果上，那就是为北美航空公司(NAA)设计的P - 51战斗机装上劳斯莱斯公司设计的“灰背隼”引擎。
The only glimmer of hope was the outcome of experiments being made in England and the US to mate the Rolls-Royce Merlin engine to the airframe of the North American Aviation (NAA) P-51.
在学习上，死记硬背是一种低效的方法。
蝎子的背侧上长有一排被称之为栉状器的独特感应梳。
Scorpions have unique sensory combs, called pectines, on their dorsal sides.
地被其上的居民污秽。因为他们犯了律法，废了律例，背了永约。
The earth also is defiled under the inhabitants thereof; because they have transgressed the laws, changed the ordinance, broken the everlasting covenant.
从上面——杰克斑溪兽的小小影子投射在魅影巨大的背翼上。
FROM ABOVE -- THE SMALL SHADOW of Jake's banshee falls across the back of the mighty Toruk.
但是，在第3章中，当我们有了道德上的背道时，我们该做什么呢？
But, in chapter 3, when we have moral apostasy, what shall we do?
他的背开始发痒，所以他就靠着栅栏，在板条上磨蹭。
His back itched, so he leaned against the fence and rubbed against the boards.
他们有本质上和趋势背道而行的经历。
选取参数适当的旧凝汽式机组改造为背压机组的后置机在技术上是成熟的，在实际应用上也是可行的。
It is ripe in technology and doable in practice that one old condensing turbine with proper parameter is remade to be postposition turbine of the back extraction pressure turbine.
背枷桥——这是从前给叛逆者上枷锁的地方。
刚走一步，他踩在一块湿的地方，摔倒在地，他的背重重摔在陶瓷浴缸上。
He took one step, slipped on a wet spot, fell backward, and hit his back against the hard porcelain bathtub.
刚走一步，他踩在一块湿的地方，摔倒在地，他的背重重摔在陶瓷浴缸上。
He took one step, slipped on a wet spot, fell backward, and hit his back against the hard porcelain bathtub.
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