| 单词 | 几百万年 |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔DECAY〕Coal is the partially decomposed remains of forests that covered the earth millions of years ago. 煤是由几百万年前覆盖地球表面的森林半腐烂形成的。朗文写作活用〔disappear〕The dinosaurs disappeared millions of years ago.恐龙在几百万年前就绝迹了。韦氏高阶〔pre-exist〕Dinosaurs pre-existed human beings by many millions of years.恐龙先于人类好几百万年前就存在了。剑桥高阶〔rather〕Millions of years ago, Idaho was not dry. Rather, it was warm and damp.在几百万年以前, 爱达荷州并不干燥。相反, 那时这里非常温暖湿润。外研社新世纪〔simple〕They evolved from simple life forms that existed millions of years ago.它们是从几百万年前就存在的简单的生命形式进化而来的。朗文当代Dinosaurs died out millions of years ago.恐龙几百万年前灭绝了。剑桥国际Millions of years ago, changes in the Earth's climate caused animal and plant life to diversify.几百万年以前，地球上气候的变化引起了动植物生命的多样化。剑桥国际The extinction of the dinosaurs occurred (= they stopped existing) millions of years ago.恐龙于几百万年前灭绝。剑桥国际 |
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