gases英您的浏览器不支持audio 标签。美您的浏览器不支持audio 标签。n. 气体煤气毒气用毒气杀死汽油记忆法添加记忆法真题例句1.The original atmospheres of bothgases（also gasses）是gas的复数. gas只有作气状物或气体时才可数.如：含氧气和氢气时，可以用gases. gas作汽油，气态燃油时，则不可数.
╯▽╰ gas [英[gæs] 美[ɡæs] ] gas的意思、解释过去式：gassed; 过去分词：gassed; 现在分词：gassing; 复数形式：gases; gas 基本解释gas 名词气体；汽油；[矿业] 瓦斯；毒气-Gases 1 . 气体第五条禁止旅客随身携带危险品乘坐民用航空器：第2类气体(Gases)?保障飞行安全：二、考虑到与国际标准接轨！2 . 气体的Gaseousness 气态，Gases气体的，Gases
Liquids can only fill the bottom of a container, while gases can fill it entirely. The shape of liquids is very dependent on gravity, while less dense gases are light enough to have The air is infected with noisome gases. 空气受到了有害气体的污染。Helium and neon are inert gases. 氦和氖为惰性气体。权威例句The Properties of Gases and Liquid
