They had to be small enough for people on the top floors to climb stairs. People could not be expected to climb a mountain at the end of their journey to work, or home.
那就是楼房必须能让顶层的居民上下方便，人们下班回家后肯定不想像爬山那样去爬楼梯。
They had to be small enough for people on the top floors to climb stairs. People could not be expected to climb a mountain at the end of their journey to work, or home.
那就是楼房必须能让顶层的居民上下方便，人们下班回家后肯定不想像爬山那样去爬楼梯。
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