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南极地带会有别的生物入侵，这会对南极生物的生存环境造成怎样的影响呢 Rosie: Hello and welcome to 6 Minute English. I'm Rosie and here with me today is Chris. Hello Chris! Chris: Hi Rosie! Rosie: Today we're going to tal
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图片1 pole n．棒，杆，极，磁极，电极 vt．用竿支撑，用棒推 vi．撑篱 例句：Colin hit a telephone pole while backing out. 科林倒车的时候撞到了电线杆。 arctic adj. 北极的，北极区的 n．北极，北极 例句
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By Paul Sisco Washington, DC 01 February 2008 Scientists know that the waters north of Greenland, around the Arctic Circle, significantly influence global weather patterns. But until recently, they only have been able to measure the region's deep oce
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