Caa
abbr. 民用航空管理局（Civil Aviation Authority）
📖 牛津释义
CAA
abbr
缩写 = (Brit) Civil Aviation Authority 民用航空局.
🗣️ 情景例句
Won't you be busy?
你不是有事吗？
We have known each other for 6 years.
我们认识有六年了。
they aroused great interest at the time, they had important theoretical consequences,
这些观察在当时引起了人们极大的兴趣，具有重要的理论意义，