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One problem with the collision hypothesis is the question of how a satellite formed in this way could have settled into the nearly circular orbit that the Moon has today.

碰撞假说的一个问题是，以这种方式形成的卫星是如何在月球现在的近乎圆形的轨道上运行的。

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CORWM itself is merely the latest in a string of committees set up to deal with the problem; all previous attempts stumbled on the delicate question of where such a bunker could be built.

放射性废料管理委员会本身只是一连串处理核废料问题的委员会之一；到底在哪里建立这么一个储藏库呢？这个细微的问题难倒了之前的提出所有尝试的人。

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There's no question that homophobia is a problem in the black community, especially the churchgoing segment of said community.

毫无疑问，恐同确实是黑人社区存在的一个问题，尤其在每周去教堂做礼拜的地区。