There's the hard sphere. It wants to collide against the wall to create a force on the wall, and I have a couple of the hard spheres that are nearby, right, and in the absence of any interactions, I get a certain pressure.

给墙一个作用力,现在它的附近，还有许多小球,没有相互作用时,它将直接冲向这面墙。

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it doesn't really, it doesn't really lean into the room very well. It's just a painting on the wall, and you see it as a painting.

它并不是真的与房间融合得很好。它只是墙上的一幅画，而且你只把它当做一幅画。

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Now, maybe the one-room metaphor is not the best metaphor, because it immediately prompts the question, "Well, what's on the other side of the wall?"

也许一间房的比喻并不是最好的,因为它立刻会引出这个问题,墙的另一边是什么呢

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"It's something I usually keep hanging on the wall, but it's the only weapon I have, " said Bonelli, 23.

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The silenced, carbon fiber-enclosed motor is positioned away from the sink whether it's on a wall or a counter, leaving only the streamlined faucet in view.

ENGADGET

There's not much point wishing one had been a mosca on the wall at the Madrid meeting--it's pretty clear what went on--or didn't go on--after the doors closed behind the globe's third-richest man and Solbes.

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