magron

例句：

1. 1. The compass is the most important tool for navigation.
   指南针是导航最重要的工具。
2. 2.The compass needle always points towards the magnetic north.
   指南针的指针总是指向磁北。
3. 3.The sailor used a compass to find his way back to the ship.
   那位水手用指南针找到了回家的路。