英语翻译

问题描述:

英语翻译
很久以前,地球上有很多恐龙.但后来其数量持续减少.现在已经绝迹了(dinosaur,mumerous,dwindle,wipe out)
别用有道翻译,百度翻译的或者其他产品的。我要人工翻译(必须用到括号里的单词)

Long long ago, there were numerous dinosaurs on the earth. But then their numbers continued to dwindle. And now they are totally wiped out. 应该能看出来是纯人工吧,希望有用