That's why they came back. 所以回来了

431. North, not south!
     北方，不是南方
432. The cold winds are rising.
     冷风已然吹起
433. They were touched by white walkers.
     他们被异鬼触碰过
434. That's why they came back.
     所以回来了
435. That's why their eyes turned blue.
     而眼睛也变蓝了
436. Only fire will stop them.
     只有用火烧才能阻止他们
437. How do you know that?
     你怎么知道

来自《权力的游戏 第一季 第八集 Game of Thrones S01E08 奈德性命堪忧》第 434 行