Once you're in position, slightly tilt your head back and extend the tip of your tongue just past your bottom lip.
到达位置后，轻轻向后仰头，伸舌到稍微超过下唇。
Every now and then he withdraws his head as if by chance. The reader will anxiously devour one or two words before Luke moves back into position.
有时他会装作偶然地移开头，那读者便会抓紧时间在他的头移回来之前读上一到两个词。
Technically, back labor occurs when the fetus is in a posterior position, with its face up and the back of its head pressing against your sacrum, or the back of your pelvis.
从技术上来说，背阵痛发生在胎儿处于背对的位置，它的脸朝上而后脑勺紧靠你的骶骨或者骨盆后方。
I was drenched and terrified, and fell instantly back into my old position, whereupon the coracle seemed to find her head again, and led me as softly as before among the billows.
我浑身湿透，惊恐万分，急忙躺回老地方，小艇似乎又恢复常态，带着我在海浪中温柔地前行，像先前一样。
If there's no front kick drum head, position the mic inside the bass drum about a foot back from the point where the beater hits.
如果底鼓前面没有鼓皮，那么就把麦克固定在鼓腔内距踩锤击打位置1英尺的位置。
It looked like a very uncomfortable position, with my head almost between my knees and my back crooked, but I painted all my best pictures this way, with the wooden floor as my only easel.
虽然这样看上去像一个非常不舒服的姿势，我的头几乎夹在两个膝盖之间，背也弯曲，但我所有的最好的画作都是这样画好的，木地板就这样成为我唯一的黑板。
The results show that the front and back turn stiffness is the most important factor, which makes the head to deviate away from the equilibrium position.
计算结果表明：磁头气体动压正翻刚度是影响磁头稳定的重要因素，它会使磁头越来越偏离平衡位置。
The results show that the front and back turn stiffness is the most important factor, which makes the head to deviate away from the equilibrium position.
计算结果表明：磁头气体动压正翻刚度是影响磁头稳定的重要因素，它会使磁头越来越偏离平衡位置。
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