Newton put forward three laws of motion in the book.
在书中，牛顿提出三个运动定律。
It is essential to put the entire body mass in motion behind long-range strikes.
把整个体重应用在远距离打击是必不可少的。
Pull this handle towards you and put the machine in motion.
往里拉这个把手开动机器。
Pull this handle towards you and put the machine in motion.
往里拉这个把手开动机器。
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