n (1)气体((one of a) variety of substances like air，containing of atoms and molecules that move freely in space and will fill in all the space available to them)[C，U]：Oxygen/Hydrogen is a～. 氧/氢是一种气体。a mixture of～es 一种混合气体;a～balloon 气球;

(2) 1)可燃气(any inflammable substance of this type which is used for heating，cooking or lighting)[U]：light the～点上煤气;turn the～on/off 打开/关掉煤气;cook by～用煤气做饭;butane/coal/natural～丁烷/煤/天然气;put the kettle on the～把水壶放在煤气炉上;cook on a low/medium/high～在微/中/大火煤气炉上做饭;a～oven/metre/furnace/tank煤气灶/表/炉/罐;a～ring/lighter/board/bracket/cylinder/tap(有环形喷火孔的)煤气炉/煤气打火机/煤气管理委员会/墙上伸出的有喷嘴的煤气管/高压气罐/控制煤气流量的丝锥;～fire煤气取暖炉; 2)麻醉气(special gas used，esp in surgery or by dentists to put patients to sleep when drilling or removing teeth)[U]：be given～吸了麻醉气;have～or an injection 使用麻醉气或者注射麻醉剂; 3)毒气(poisonous or irritating gas used in war)[U]：attack with～用毒气攻击;tear～催泪弹;a～attack/chamber/bomb毒气攻击/室/弹;a～mask防毒面具;

(3)汽油(petrol)[U](AmE)(infml)：～station 加油站;〖同〗gasoline，fuel;

(4)空谈，吹牛(unimportant，empty talk;boasting)[U](fig，derog)(尤BrE)：It's all～and hot air.这些全是空话。

(5)有趣的事(wildly funny or pleasant thing)[C，通常sing](sl)(尤AmE)：The latest record/film/idea/party was a real～.这个最新的记录/这个最新的电影/这个最新的想法/最近的这次聚会真是有趣。

→′gassy adj 像气体的，气状的，充满气体的;空谈的，吹牛的;′gaseous adj 含气体的;′gassiness n 充满气体的状态;′gasbag n 多嘴的人，废话连篇的人;话痨;′gas-fitter n 安装煤气设施的工人;′gas-fitting n 煤气装置;′gasholder n 贮气容器;gas-light n 煤气灯;gasman n 煤气公司查表人;′gas-pipe n 煤气管道;′gas-fired adj 用煤气作燃料的;′gas-lit adj 用燃烧煤气的光照明的;

v (1)用毒气杀伤(poison or kill (a person or an animal) with gas)[T+n]～oneself 用毒气自杀;be～sed during the World War Ⅰ在第一次世界大战期间中了毒气;

(2)空谈;吹牛(talk for a long time without saying anything of importance)[I，I+prep (about)](infml)(derog)(尤BrE)：He was～sing on about how clever she was.他在喋喋不休地谈她有多聪明。～on the phone for hours 在电话里空谈了几个小时;

→′gasify v(使)变成气体，气化