Obviously it's something that the huge population throughout the world uses, so yeah, it's good.
世界上有一大群人现在正在使用这个产品,所以是的,很不错。
Now, the reason this condition always holds in ordinary mechanics is because you're never, in that case, concerned with a huge statistical population of particles where the disorder among them is an issue.
这个条件在力学中总是成立,这是因为在力学中,我们从来没有关注过大量粒子的统计行为,而对这些系统来说,无序是很重要的。
That's probably because of the huge immigration population in San Francisco,
或许是因为这里有大量的移民人口,
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