求一篇"如何保护野生动物"英语作文为什么先有鸡在有蛋用科学道理解释

问题描述:

求一篇"如何保护野生动物"英语作文
为什么先有鸡在有蛋用科学道理解释

Many wild animals are facing the danger of extinction,because the environment that they are living in has changed greatly.For example,with the developmet of cities,the using of insecticide and serious...