单词：benzene bottoms
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This is Scientific Americans 60-Second Science. Im Sophie Bushwick. Got a Minute? What's the best way to find out if an unknown mixture contains a specific substance, like an environmental contaminant? You could use an expensive, bulky gas chromatogr
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He had just bought a used floor lamp. He carried it downstairs to his apartment. He put it on the floor. It wobbled. He banged it down to fix the wobbling. It still wobbled. He lifted it. Big and small chunks of sand-like filler lay on the floor. No
英文短篇故事（纽约）
蓝调王子 打榜热歌：Trey Songz - Bottoms Up [Intro] Yeah Oh oh it's Mr. Steal Yo Girl Oh oh it's Mr. Steal Yo Girl oh oh Let's go [Chorus: Trey Songz] Bottoms up, bottoms up, ey, what's in ya cup Got a couple bottles, but a couple ain't enoug
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Indoor air pollution is a common threat to human health, the new study looked at five common house plants and found that when it comes to removing harmful chemicals from the air, those five plants are better than others. 室内空气污染对人类健康
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曾为电影《舞出我人生2》演唱插曲的Trey Songz是一个有着极佳嗓音的节奏蓝调新星，被乐迷称为节奏蓝调界的维吉尼亚王子。新单曲Bottoms Up本周顺利进驻Billboard榜单前十，位居第六。 Artist：
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曾为电影《舞出我人生2》演唱插曲的Trey Songz是一个有着极佳嗓音的节奏蓝调新星，被乐迷称为节奏蓝调界的维吉尼亚王子。 新单曲Bottoms Up本周顺利进驻Billboard榜单前十，位居第六。 Bottoms
天籁音乐