million years ago,millions of years ago 那种说法对?为啥

＿＿＿（million）years ago 60 million years ago,the earth was eaten翻译 When the first elephants appeared about 40 million years ago. Dinosaurs (e )sixty million years ago.首字母填空 million years ago,millions of years ago 那种说法对?为啥 Chandler:A dinosaur died a million years ago?Ross:Try sixty-five million years ago,and then try sssshhhhhh.Try 这句话省略了什么? The earth was once a sea of fire a few million years ago.的翻译. About 2000 years ago,the world's population was p------- about 250 million. We now know the first dinosaurs_____(出现)about 230 million years ago. We now know the first dinosaurs ___ [apper]about 230 million years ago. 英语翻译This animal first appeared in Africa twenty million years ago 对加引号部分提问：The last dinosaurs died more than 60 million years ago The last ones died more then 60 million years ago.Nobody knows the last ones died more then 60 million years ago.nobody knows 英语翻译it was a night like this 40 million years ago three hundred and senventy-five million years ago,the weather became very hot.many years went p____ 对more than 6 million years 如何提问句子：The last dinosaurs died (more than 6 million years ago).(对括号内部分提问）, ten million years 歌词