左臂前伸的同时头向右转回。
落地时双脚并拢，双臂前伸以保持平衡。
Keep your feet together and your arm forward to keep your balance.
左臂继续前伸。
起床前别忘了伸个懒腰。
他的错误是在打球进桶的时候左脚伸前了。
His mistake was putting his left foot forward while putting.
研究了舰载机前起落架的突伸运动。
The fast-extension motion of the nose gear of the carrier-based aircraft is studied.
研究了舰载机前起落架的突伸运动。
The fast-extension motion of the nose gear of the carrier-based aircraft is studied.
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