first of·fic·er
noun/ˌfɜːst ˈɒfɪsə(r)/
/ˌfɜːrst ˈɑːfɪsər/
- (also first mate)the officer on a commercial ship just below the rank of captain or master
（商船的）大副 - the second in command to the captain on an aircraft
副驾驶：飞机机长的副驾驶
| 单词 | first-officer |
| 释义 | first of·fic·ernoun/ˌfɜːst ˈɒfɪsə(r)/ /ˌfɜːrst ˈɑːfɪsər/
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