n.

1. 气体[U][C]
   There are several kinds of gas in the air.

   空气中有几种气体。

2. 【矿】瓦斯[U]
3. 可燃气；煤气；沼气[U]
   Gas is now widely used for cooking and heating.

   现在普遍用煤气烧饭，取暖。

4. 【军】毒气，毒瓦斯[U]
5. 【美】【口】汽油[U]
   Is there a gas station nearby?

   附近有加油站吗？

6. 【美】胃气，肠气[U]
7. 【美】【俚】很快乐的事[S]
   Chatting with a friend is a gas.

   与朋友聊天是一件很愉快的事。

8. 【俚】空谈；吹牛[U]

vt.

1. 给……供应气体（如煤气等）
2. 【美】【口】给（汽车等）加汽油[（+up）]
   I'll gas up my car.

   我要给汽车加气油。

3. 用气体处理
4. 用毒气攻击（敌人等）；用毒气杀伤（人）
   About 100,000 men, women and children were gassed by these Fascists.

   大约十万男人，女人以及小孩被这些法西斯分子用毒气杀害。

vi.

1. 放出气体
2. 【美】【口】（给汽车等）加油[（+up）]
3. 【俚】空谈；吹牛
   I hate gassing about democracy.

   我讨厌空谈民主。

n.

1. an air-like fluid substance which expands freely to fill any space available, irrespective of its quantity.
   ▸Physics  a substance of this type that cannot be liquefied by pressure alone. Compare with vapour.
   ▸a flammable gas used as a fuel.
   ▸Mining  an explosive mixture of firedamp (methane) with air.
2. a gaseous anaesthetic such as nitrous oxide, used in dentistry.
3. N. Amer. flatulence.
4. N. Amer. informal gasoline; petrol.
5. (a gas) informal an entertaining or amusing person or thing.

v.

1. kill or harm by exposure to gas.
   ▸(of a storage battery or dry cell) give off gas.
2. informal talk idly; chatter.
3. N. Amer. informal fill the tank of (a motor vehicle) with petrol.