定义
a gas: 气体
(I need to put some) gas (in my car) (US): （我需要给我的车）（加一些）汽油，燃料
Gas (燃料)在英国被称为"petrol"
- "I ran out of gas."
- "I also prefer central heating from natural gas rather than electricity, although if you can find an apartment with solar panels, that would be ideal."
- "Due to a tragic gas explosion in the Olympic village, all other contestants were killed before the event."
- "We need gas and I'm a bit tired."
