An increasing number of people come to realize that the disappearance of animals will result in serious threat to the equilibrium of ecosystem.
越来越多的人们开始认识到动物的消失会对生态系统的均衡产生严重的威胁。
An increasing number of people come to realize that the disappearance of animals will result in serious threat to the equilibrium of ecosystem.
越来越多的人们开始认识到动物的消失会对生态系统的均衡产生严重的威胁。
应用推荐