In an instant, 一瞬间

148. the pressure from behind increased.
     来自后方的压力增加
149. Before long, the walls started to crumble from the inside out...
     不久之后 墙开始从内部碎裂
150. until finally, catastrophic collapse.
     最终导致灾难性的崩溃
151. In an instant,
     一瞬间
152. a lake the size of the Irish Sea is unleashed.
     一个像爱尔兰海那么大的湖泊 倾泻而下
153. Thirty kilometers south,
     向南30公里
154. and the first hint of the coming apocalypse.
     大灾变即将到来的迹象初现

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 151 行