is today the longest continually erupting volcano on the planet, 是地球上现存持续喷发时间最长的火山

14. Lava rises to the surface through this crack in the crust
    熔岩经过这条地壳裂缝涌上地表
15. creating a chain of young volcanoes.
    诞生了一连串年轻的火山
16. This one, Erta Ale,
    这座埃特阿雷火山
17. is today the longest continually erupting volcano on the planet,
    是地球上现存持续喷发时间最长的火山
18. a lake of lava that has been molten for over a hundred years.
    岩浆湖在此沸腾了100多年
19. These same volcanic forces also created Ethiopia's highlands.
    这些相同的火山作用 也造就了埃塞俄比亚高原
20. 70 million years ago
    7000万年前

来自《行星地球 第一季 第二集 Planet Earth S01E02 山地》第 17 行