Naca
abbr. National Advisory Committee for Aeronautics <美> 国家航空咨询委员会
🗣️ 情景例句
I'm with you.
我知道你的意思。
Would you please open the door for me?
请你帮忙开个门好吗？
I don't know. My head hurts.
不知道。我头痛。