airman official certificate是什么意思 airman official certificate在线中文翻译

airman official certificate

中文翻译
1
航空人员执业证书

相关单词辨析

certificate: 证书,如产品合格证明书
license: 执照,如驾照;

officer: 部队的军官,
official: 政府官员 an army officer