臭氧是一种非常活跃的氧气形态。Ozone is a highly reactive form of oxygen gas.臭氧由氧气和紫外线发生反应而产生。Ozone is produced by the reaction between oxygen and ultra-violet light.密封的飞机内很少需要补充氧气。Supplementary oxygen is rarely needed in pressurized ai...
...restaurants where coffee pots steamed on their burners.咖啡壶在炉子上冒着热气的餐馆The gas stove has only two burners.这瓦斯炉只有两个瓦斯头.Cautery burners need to be sterilized.烧灼燃烧器必须消毒.Some stoves are oil burners; others are gas burners.有...
Katerina, played by Vera strives to earn her degree and also works hard at a factory.维拉·阿莲托娃饰演的凯特琳娜, 为获得学位而苦苦奋斗,并在一家工厂辛勤工作.Players should be allowed to earn money from advertising...应该允许运动员拍广告挣钱。She worked hard to earn h...
This weekend's fighting is threatening to burst into full-scale war...本周末的冲突有升级成全面战争的危险。The police could have charged them with threatening behaviour...警方本可指控他们恐吓。The fighting is threatening to turn into full-scale ...