permian period

常见例句

The end of the Permian period, 252m years ago, was marked by the biggest extinction of life known to have happened on Earth.
252百萬年前的二曡紀晚期以已知的地球上發生過的最慘痛的生物滅絕事件著稱。
The die-off, which occurred worldwide about 250 million years ago at the end of the Permian period, was even more extensive than the one that wiped out the dinosaurs.
這場全球性的大災難發生於2億5千萬年前的二曡紀晚期，其範圍甚至比導致恐龍滅亡的那場災難還要來的廣泛。
A bigger mass extinction, at the end of the Permian period 251m years ago, killed 70% of the world’s land vertebrates (and 96% of all marine animals) and paved the way for the age of reptiles.
而更大槼模的滅絕發生在25100萬年前二曡紀末期，致使世界上70％的陸地脊椎動物（和96%的海洋動物）死亡，同時造就了爬行動物的時代。