Volcanoes had been erupting for millions of years. 火山已经喷发了数百万年

10. yet this was no blue planet.
    但当时的地球并非蓝色
11. Instead, vast clouds of methane had turned the atmosphere yellow.
    恰恰相反 巨大的甲烷云将大气变为黄色
12. On land, conditions were even worse.
    陆地上的情况更糟
13. Volcanoes had been erupting for millions of years.
    火山已经喷发了数百万年
14. Their explosive power,
    其爆♥炸♥声
15. one of the few sounds in this otherwise silent realm.
    是那个原本寂静的世界中 为数不多的声音之一
16. With the world made up of nothing but toxic air and rivers of molten rock...
    当时的世界只有 有毒气体和熔岩河流

来自《我们星球上的生命 第一季 第二集 Life on Our Planet S01E02 第一前线》第 13 行