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短语

first officer

技术 erster Offizier
 英语 词库
first officer
航空, 加拿大 A licensed pilot assigned to duty as a pilot in an aircraft during flight time, other than as a a pilot-in-command; or b a pilot receiving flying instruction
First Officer also called a co-pilot
缩写, 航空 FO (второй пилот Val_Ships)
First Officers
: 5 短语, 3 学科
一般1
贸易联盟3
运输1