certificates造句
All our aircraft have
certificates of airworthiness.
我们所有的飞机都有适航证书。
Make sure you enclose all the relevant
certificates.
要保证把所有相关证书都放在里面。
There are only two internationally recognised
certificates in Teaching English as a Foreign Language.
“作为外语的英语教学”只有两种国际上认可的证书。