natural gas
短语
大学
★☆☆☆☆
天然气
发音
CA
词形变化
natural gases
复数
natural gases
别名
NG
教材释义与例句
名词
天然气
名词
天然瓦斯；天然煤气；天燃气
释义与例句
n.
-
1.
A mixture of gaseous hydrocarbons associated with petroleum deposits; mostly methane with smaller amounts of ethane, propane and butane; principally used as a fuel.
天然气
天然煤气
可数 不可数
词汇关系
词源
By opposition to coal gas (19th century).
来源：wiktionary