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...
Floodlights illuminated the stadium.泛光灯照亮了体育场。The tournament was played under floodlights.比赛在泛光灯下进行。Only 300 people came to the match and to add insult to injury (= to make things worse), the floodlights went out during ...