그 내부는 얼음으로 뒤덮혀 있어서 저희는 커다란 침이 박힌 아이젠을 신어야 했죠. 그러면 미끄러지지 않고 걸을 수 있으니까요.
The inside of it was coated with ice, so we had to wear big spikes on our feet called crampons so we could walk around without slipping.