certificates造句
All our aircraft have
certificates of airworthiness.
我們所有的飛機都有適航證書。
Make sure you enclose all the relevant
certificates.
要保證把所有相關證書都放在里面。
There are only two internationally recognised
certificates in Teaching English as a Foreign Language.
“作為外語的英語教學”只有兩種國際上認可的證書。