- all at the same time.
而且是同时进行 - And to make matters worse,
更糟糕的是 - we are doing it at meteoric speed.
我们做得极快 - Although rare, mass extinctions change the course of history like nothing else.
大规模灭绝虽然罕见 但会极大地改变历史的进程 - So far, Earth has endured five of these apocalyptic events,
到目前为止 地球已经经历了五次这样的末日事件 - each one wiping out more than three-quarters of all life.
每一次都消灭了四分之三以上的生命 - What's more,
而且
来自《我们星球上的生命 第一季 第八集 Life on Our Planet S01E08 冰与火的世纪》第 308 行