下级水手

例句：

1. 1. He is a lowerman on the ship, responsible for maintaining the ship's equipment.
   他是船上的低级水手，负责维护船上的设备。
2. 2.The lowerman was assigned to clean the engine room after the captain left.
   船长离开后，低级水手被分配去清理发动机室。
3. 3. The lowerman had to work long hours to keep up with the demands of the job.
   低级水手不得不长时间工作以满足工作的需要。