tipepidinum

例句：

1. 1.The tip of the pen is the most important part.
   笔尖是最重要的部分。
2. 2.The tip of the iceberg is often overlooked.
   冰山的尖端常常被忽视。
3. 3. The tip of the tongue can be used to taste different flavors.
   舌头的尖端可以用来尝不同的味道。