are created in a matter of hours. 仅数小时便化为现实

162. the megaflood smashes an 800-kilometer-long path through the American continent,
     大洪水在美洲大♥陆♥上 形成了800公里长的通道
163. all the way to the ocean.
     直通海洋
164. Natural wonders that might otherwise take millennia to form
     原本需要数千年才能形成的自然奇观
165. are created in a matter of hours.
     仅数小时便化为现实
166. But these spectacles are short-lived.
     但这些壮丽景观很短命
167. Just a few days later,
     仅仅几天之后
168. all that remains is an eerie silence.
     只剩下一片诡异的寂静

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 165 行