sinking guide

例句：

1. 1. The ship's sinking guide helped the crew to navigate through the storm.
   船的下沉指南帮助船员在暴风雨中导航。
2. 2. The guidebook provided detailed information about the historical site.
   指南书提供了关于这个历史遗址的详细信息。
3. 3.The guide was very helpful in explaining the complex system of tunnels.
   导游非常乐于解释复杂的隧道系统。