1. 習(xí)慣上說，地球上最大的一塊陸地是沿著烏拉爾山脈分為兩大“洲”的。
   The largest landmass is usually divided into two "continents" along the Ural Mountains.
2. 蘇丹非洲北部一地區(qū)，位于赤道以北，撒哈拉大沙漠以南，從大西洋沿岸橫貫大陸至埃塞俄比亞山脈
   A region of northern Africa south of the Sahara and north of the equator. It extends across the continent from the Atlantic coast to the mountains of Ethiopia.
3. 為翻越山脈的不斷努力
   A long pull across the mountains.

山的英語翻譯：

脈的英語翻譯：