Heels not only have to be the right height but in the right position: not too far back, but under the centre of the heel so they support your weight properly, following the natural line of your body.
鞋跟不仅要有一个合适的高度，也需要在正确的位置上：不能太靠后，要在脚后跟的中心，这样的鞋跟才能沿着你的身体曲线有效地支持你的体重。
In flatforms, by contrast, the front of the shoe is the same height as the back, enabling the wearer to keep their foot completely flat.
与之不同的是，“厚平底鞋”的前后鞋底高度相同，这样穿着的时候脚就是完全放平的。
Other bird "trace" fossils have been found in Utah and Alaska, but none from so far back as the early Cretaceous -- at the height of the age of dinosaurs.
在犹他州和阿拉斯加州还发现了另一种鸟的“足迹”化石，但都无法追溯到白垩纪早期——恐龙时代的鼎盛时期。
But when we got it back to the laboratory it became clear it was a cockroach, closely related to the common roach but with sophisticated hind legs and the ability to jump many times its own height.
不过在带回实验室之后我们才发现这是只蟑螂，与通常所见的蟑螂非常类似，不过后腿非常发达，跳跃能力很强。
The emergency cooling system pump and motor for a boiling-water reactor are roughly the size and height of a compact hatchback car standing on its back bumper.
沸水反应堆紧急制冷系统的水泵和电动机和紧凑的两厢车竖起来的大小差不多。
The land is located in the limit of a closed condominium, with a height difference of 8 meters at the back, which allows us to release the views to the east of the metropolitan area of Guadalajara.
项目场地位于封闭公寓的界线内，后部高度差为8米，能让我们欣赏到瓜达拉哈拉大都市区的东部风景。
Many track coaches describe this ideal torso position as "running tall" and it means you need to stretch yourself up to your full height with your back comfortably straight.
许多田径教练将这一理想身姿描述为“跑得高挑”，意思是您跑步时需要将身体伸展至您的最大身高，背部舒服地挺直。
The size is nice--it's not like the last-gen Kindle was too big, but smaller is always nice, and the inch or so of height and centimeter or so of width moves the Kindle into back-pocket territory.
尺寸大小很合适，不像上一代的Kindle过大，长度和宽度的大小刚好能装入后裤袋。
We know that some part of light is directly in contact with that ground, it comes back, bounces, just like a ball falling from a height.
我们知道一部分光是直接照射到地面上的，他又返回来，反弹，就像一个球从高处落下一样。
Both can be separated off from the central double-height living room by sliding partitions, and all three Spaces open onto a porch at the back.
两者都可以通过滑动分区从中央双层客厅处分离，三个空间都可以通往后面的门廊。
The difference between the front and back bulge edges results in pressure drag which increases with increasing bulge density and height, and with decreasing duty ratio.
结果显示，由于矩形形貌的影响，形成了压差阻力，压差阻力随形貌突起高度或密度的增加而增大，随突起占空比的增加而减小。
Qing Dynasty and field Baiyu chi dragon jade Diameter 5.5 centimeters, height 1 centimeter. The positive high relief double chi dragon, back is the young nail grain.
清和田白玉螭龙玉璧直径5.5厘米，高1厘米。正面高浮雕双螭龙，背面是乳钉纹。
When you adjust the height of the back manually, in order to prevent sliding, you should operate with right hand and touch the back with left hand.
手工调节椅背角度时，右手操作手柄，左手要扶住椅背以防突然下落。
By stepping back as a composition of several smaller volumes, the building reduces its height along the street.
因而采用阶梯式体形，如一组小体量建筑的叠加，保持了与其他建筑沿街高度的一致。
The correlation between the diameter of the front lateral root of Staghorn sumac and its basal diameter, crown width and height is more significant than that of the back part of the lateral root.
火炬树子株前端水平侧根直径与其地径、冠幅、树高的相关性高于后端水平侧根直径；
The relationships between suprapelvic height and idiopathic scoliosis, and between pelvic height and low back pain are discussed.
本文还讨论了盆上高度与自发性脊柱侧凸、盆高与腰痛之间的关系。
Carry on the back is mainly aimed at better humpback etc of spinal problem, so no direct relationship with age, its size is according to height and waist circumference.
背背佳是主要针对驼背等脊椎问题的，所以跟年龄没有直接的关系，它的尺码是根据身高和腰围来的。
The goals of kyphoplasty are to reduce pain from the fracture, stabilize the vertebra, and restore the vertebra back to its normal height.
后凸成形术的目的在于降低因骨折引起的疼痛，使椎体稳定，并使椎体恢复正常的高度。
At the top of the sail is a short SPAR called the gaff, which allows the sail to extend back along a fourth side, gaining size over a triangular sail of the same height.
在帆面的上方是一根短的圆杆，称为斜桁(gaff)，使得帆面可以在第四条边上延长，因而比同等高度的三角帆面积更大。
PKP has exact efficacy on reducing back pain and restore the height and shape of vertebrae and is a ideal method in the treatment of vertebral compression fractures due to osteoporosis.
经皮后凸成形术在治疗胸腰椎骨质疏松性骨折中有确切缓解疼痛及恢复椎体高度和形态的作用，是理想的治疗方法。
Posterior lumbar interbody fusion is effective in increasing the improvement rates of lower back pain JOA score and maintaining the disc height and the superior intervertebral space angle.
治疗腰椎间盘突出症复发，在提高下腰痛评分、维持椎间高度和上一椎间隙角度方面，后路椎间融合术优于其它两手术方式。
After taking off, we were flying low over the city and slowly gaining height, when the plane suddenly turned round and flew back to the airport. lesson79.
起飞之后，我们在城市上空低低飞行，然后慢慢爬高，这时飞机突然调转头来飞回了机场。
After taking off, we were flying low over the city and slowly gaining height, when the plane suddenly turned round and flew back to the airport.
起飞之后，我们在城市上空低低地飞行，然后慢慢爬高。这时飞机突然调转头来，飞回了机场。
We're flying too fast, so I'll ease back on the stick and gain a little height.
我们飞得太快了，我要把操纵杆拉回一点以增加高度。
His father and Nico had been turning back to check the height of the river almost before their parting words were fully spoken.
他的父亲和尼柯连告别的话都没说完就去检查河水水位了。
After taking off, we were flying low over the city and slowly gaining height, when the plane suddenly turned round and flew back to the airport.
飞机起飞后我们在城市上空飞的很低，然后慢慢升高，这时飞机突然转了一圈飞回了机场。
After taking off, we were flying low over the city and slowly gaining height, when the plane suddenly turned round and flew back to the airport.
飞机起飞后我们在城市上空飞的很低，然后慢慢升高，这时飞机突然转了一圈飞回了机场。
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