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。When it comes to expressing himself he is no shrinking violet.他在表达自己的想法时毫不羞怯。Violet appended a note at the end of the letter.维奥莱特在信...
The birds were put on display at the zoological society.这些鸟类将在动物协会展出.On the wagon was a Nubian lion from the royal zoological gardens.车上是皇家动物园的一头努比亚种的狮子.Many kinds of animals are kept for exhibition in zoological gardens...