不管她怎么用力推门,门都打不开。
她把那本书用力推进书桌,转动钥匙,又羞又恼地哭了起来。
She thrust the volume into the desk, turned the key, and burst out crying with shame and vexation.
他不得不用力推挤针管,这个过程非常慢。
He has to push down hard on the plunger, and the process is slow.
Here I got 3 kg and I got 2 kg and I'm pushing with 10 Newtons and I want to know what happens.
一个物体 3 千克,另一个 2 千克,现在我用 10 牛的力推它,我想知道接下来会怎样
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