give off gas（give off）

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1、give off:发出(光等) v. 放出,排出 例句与用法 All the radioactive materials give off the harmful radioactive which can be deadly at high levels. 所有这些放射性材料都放出有害的射线，小则致癌，大能致死。

2、 When wine is fermented it gives off bubbles of gas. 酒发酵时会放出气泡。

3、 As motor vehicles burn fuel, they give off carbon monoxide as a waste. 在汽车燃烧燃料时，产生废气—一氧化碳。

4、 Physicists are studying new ways of generating electricity with less damage to the environment. In the meantime, many power plants are being modernized to give off less polluting material. 物理学家们正在研究对环境危害少的发电新方法，与此同时，许多发电厂也在实现现代化以减少污染物质的释放量。

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