What do you need to add to make extra stuff fit in your closet?
为了把多余的东西放进柜子里你需要做些什么呢?
It's pretty clean, and clear of any extra stuff, but it's missing that something extra.
它很干净、整洁,没有任何多余的东西,但是又缺了些什么。
Let's say you own a small bathroom. It's pretty clean, and clear of any extra stuff, but it's missing that something extra.
比如说,你拥有一间小浴室。它很干净、整洁,没有任何多余的东西,但是又缺了些什么。
The acceleration gives you an extra stuff, quadratic in time.
加速度对位移有额外贡献,是时间的二次项
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