以上来源于: WordNet
Pull the string through both holes.
把绳子从两个洞里拉出来。
We believe that a force of about one hundred pounds was needed to pull the string all the way back on a long bow.
我们认为,拉动长弓上的弓弦大约需要100磅的力。
This ball is feeling a pull from the string and that provides it with the centripetal acceleration.
小球受到绳子的拉力,这就是向心加速度的来源。
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