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名词
n. 气体
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a substance like air which is not liquid or solid;especially the gas you burn in the house to give heat
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Air is a mixture of gases.
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空气是几种气体的混合物。
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Oxygen is one of the gases
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氧(气)是气体的一种。
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Most matter has three states: solid, liquid and gas.
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大多数物质具有三种状态:固态、液态和气态。
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名词
n. 煤气
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something like air, that burns to make light and heat
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She cooks with gas.
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她用煤气烧饭。
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The gas is burning very well.
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煤气烧得很旺。
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