1. 邊界從北部山地一直延伸到南部海岸。
   The frontier ranges from the northern hills to the southern coast.
2. 這兩國之間的邊界問題歷來是爭議的焦點。
   The border has always been a bone of contention between these two countries.
3. 軍隊按時沿邊界巡邏。
   The army regularly patrol (along) the border.
4. 那球被正站在邊界線內(nèi)的守場員接住了。
   The ball was caught by a fielder standing just inside the boundary.
5. 國與國之間的邊界未明確劃定時，通常會發(fā)生糾紛。
   When boundaries between countries are not clearly defined, there is usually trouble.
6. 他們畫出了足球場地的邊界。
   They marked the boundaries of the football fields.

邊的英語翻譯：

界的英語翻譯：