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期待在新的一年里,业绩蒸蒸日上,团队更加凝聚,共创辉煌!
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Happy Chinese New Year and the Year of the Dragon!
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新春快乐,龙年大吉!
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In the past week, three fires have touched the nerves of hundreds of millions of people.
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最近一周,三起大火牵动了亿万国民的神经。这三起连发事故给我们再一次敲响防火阻燃的警钟。
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Magnesium hydroxide, with the chemical formula Mg(OH)2, is a white crystalline solid.
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氢氧化镁,化学式为Mg(OH)₂,是一种白色结晶性固体。
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三聚氰胺氰尿酸和三聚氰胺焦磷酸,傻傻分不清