compass with detachable legs

例句：

1. 1.The sailor used a compass to navigate the ship safely.
   这位水手用指南针导航，确保船只安全航行。
2. 2. The old map was still useful for finding directions in this new city.
   这张旧地图在新城市里仍然有用，用来寻找方向。
3. 3.She studied the stars and used a compass to determine her direction.
   她研究星星，并使用指南针来确定自己的方向。