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天然气
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tian1ran2qi4
natural gas
☊
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like: 天然气
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Erdgas
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天然气
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tiānránqì
Erdgas ☊ 
天然气 ☊ tiānránqì 
天然气 → ☊ tian1ran2qi4 
natural gas ☊ 
Khí đốt tự nhiên ☊ Erdgas ☊ 天然气 ☊ tiānránqì