the chief of first mate

• 大副

the chief of first mate的用法和样例：

例句

1. The first mate was studying to become a master.
   大副正在学习准备当船长。
2. In this distress, the mate of our vessel lays hold of the boat.
   在这种危急万状的时候，我们的大副抓住那只小艇。