这个站点最出色的地方就是问题的回答速度非常之快,一般来讲,绝大多数问题在一个小时内就会收到几个答案。
One great feature of the site is that answers come in fairly quickly and, generally speaking, most questions have multiple answers within an hour.
在一个时间段内,构建美国中产阶级阶层的答案来自初中毕业生,此后一个时间段,就是高中毕业生。
For a time, elementary school was the answer to the question of how to build a broad middle class in America. And for a time after that, the answer was high school.
对于隐藏岩内生物来讲,答案就是-岩石里。
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