1. The largest landmass is usually divided into two "continents" along the Ural Mountains.
    习惯上说, 地球上最大的一块陆地是沿着乌拉尔山脉分为两大"洲"的.

2. Many geographers say that the Ural Mountains form the dividing line between Europe and Asia.
    许多地理学家认为，乌拉尔山脉是欧亚两洲的分界线，