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发表于:2018-12-03 / 阅读(66) / 评论(0)

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VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I'm Barbara Klein. VOICE TWO: And I'm Bob Doughty. Scientists who study the Earth tell us that the continents and ocean floors are always moving. Sometimes, this movement is violent and

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acid-treateds

alignation

angular threshold of eye

arriver

ballast trough

barbella pendulla (sull.) fleisch