그리고 외벽의 아이디어는 훨씬, 훨씬 더 비용이 덜 들었는데 유리에 대비해보면 재질 뿐만 아니라 더 이상 냉방도 필요하지 않았기 때문이에요.
And also that the idea of the facade was much, much cheaper, not only because of the material compared with the glass, but also because we didn't need to have air conditioning anymore.