Naca
abbr. National Advisory Committee for Aeronautics <美> 国家航空咨询委员会
🗣️ 情景例句
the school poster for the play this year.
今年学校话剧的海报。
Are you John's brother?
你是约翰的兄弟吗？
Do you speak Chinese?
你会讲汉语吗？