Thewind from the car's motion whipped her hair around her head.
汽车驶过带起的风吹乱了她的头发。
Cutting head movement and feed are used linear bearing motion pair.
机头移动和进给均采用直线轴承运动副。
Try to keep your head and torso right at the surface, with very little up-and-down-motion.
尝试保持你的头和躯干正好在水面下,只有很小的起伏波动。
Try to keep your head and torso right at the surface, with very little up-and-down-motion.
尝试保持你的头和躯干正好在水面下,只有很小的起伏波动。
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