Cnas
abbr. Chief of Naval Air Services 海军航空服务主管; Civil Navigation Aids System 国内航海援助系统
🗣️ 情景例句
Hello, Mr. Carlson.
哈喽， Carlson先生。
In for a penny,in for a pound.
做事一开头，就要做到底；一不做，二不休。
Who do you think you are?
你以为你是谁？