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The gorge narrows to 350 feet as the river rushes through the two-mile-high mountains.
当急流穿过两英里高的峡谷时,峡谷变窄了,只有350英尺.
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The river was not high, so there was not more than a two-or three-mile current.
河里的水不大, 所以流速也不过二三英里.
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因位于战火纷飞的刚果共和国东部地区，科学家们对于这座高大的岩浆“炉”知之甚少，所以尚且不乏预计这灾难性浩劫将在何时发生。
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