桅楼守望员

例句：

1. 1.The sailors on the ship were all 桅楼守望员, watching the horizon for any signs of danger.
   船上的水手都是桅楼守望员，时刻警惕着任何危险的迹象。
2. 2.The captain had assigned a 桅楼守望员 to watch over the ship during the night.
   船长已经指派了一个桅楼守望员在夜间看守船只。
3. 3. The 桅楼守望员 was responsible for keeping an eye on the cargo and making sure nothing went wrong.
   桅楼守望员负责监视货物并确保一切顺利。