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单词 nitrogen
释义
nitrogen
ntrədʒən ˈnaɪtrədʒən
N-UNCOUNT ;氮气 Nitrogen is a colourless element that has no smell and is usually found as a gas. It forms about 78% of the earth's atmosphere, and is found in all living things. ;氮气
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更新时间:2025/2/14 7:20:25