second mate的用法和樣例：
例句
用作名詞 (n.)
- The lip of that confounded cub , the second mate, quivered visibly.
二副，那個驚慌失措的小夥子的嘴唇明顯地哆嗦起來了。 - The second officer should correct sharts and nautical publlcations in time to ensure a safe sailing.
二副要及時對海圖及圖書資料進行改正以確保航行安全。
