顶突

例句：

1. 1.The top of the mountain was covered insnow.
   山顶覆盖着雪。
2. 2. Thescientist made a topographicmap of the area.
   科学家制作了该地区的地形图。
3. 3. The topof the hill is visible from here.
   从这儿可以看到山顶。