Ozone is a highly reactive form of oxygen gas.臭氧是一种非常活跃的氧气形态。Ozone is produced by the reaction between oxygen and ultra-violet light.臭氧由氧气和紫外线发生反应而产生。Every spring the ozone is chewed up, and the hole appears.每年春天，臭氧遭到破坏，...
With hindsight, we'd all do things differently...有了事后的认识，我们都会以不同的方式行事。It is important to remember that each person reacts differently...重要的是要记住每个人的反应不同。I would have phrased it quite differently.我本可以把它表述得全然不同。The nex...