年夜学英语测验精读:第六册(UNIT3) optimistic a. tending to see the bright side of things imply vt. express, show or mean indirectly; suggest stellar a. of or concerning stars mu... /
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亚马逊河 The Amazon The Amazon is the greatest river in the world by so many measures; the volume of water it carries to the sea(approximately 20百分 of all the freshwater discharge into the ocea... /
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