top hole

例句：

1. 1.The game's top hole is the most challenging part of the course.
   这个游戏的最难的部分是球场的顶端。
2. 2. The engineer found a top hole in the wall that led to a hidden room.
   工程师在墙上发现了一个通往密室的顶部洞口。
3. 3. He carefully climbed up the ladder to reach the top hole of the roof.
   他小心地爬上梯子，到达屋顶的顶部洞口。