Naca
abbr. National Advisory Committee for Aeronautics <美> 国家航空咨询委员会
🗣️ 情景例句
Let's get together and have a group study session.
咱们在一起组织一个学习小组吧。
One should not run with the hare and hunt with the hounds.
不应两面讨好。
Thanks very much.
多谢。