单词：propensity to hoard
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This is Scientific American's 60 Second Science. I'm Steve Mirsky, got a minute? The Meridiana Planum region of Mars once had water that was really soft and highly acidic, conditions in incredibly hostile to any life forms that we know about. So any
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Tuesdays with Morris 相约星期二 Anyone who has benefited from the advice and experience of an older and wiser person is likely to immediately identify with the author of the American best seller
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Life Advice from Jane Austen Who needs agony aunts and advice columns when you can turn to the laudable pages of Jane Austen for guidance? She may have died nearly three hundred years ago, but Austen's canny observations on love, men, social standing
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We can't afford to lose whales by the likes of you; a whale would sell for thirty times what you would, Pip, in Alabama. 我们不能为了你这样的人而白白牺牲一条大鲸，一条大鲸，在阿拉巴马地方，卖起来可比你的身价高
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雅思范文：大学应该开设什么课程 Which kind of courses should universities provide: theoretical knowledge or practical training? Some people prefer the later one and assert that the practical training can benefit our society. Personally,
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