Norad
abbr. 北美防空联合司令部（North American Air Defense Command）
🗣️ 情景例句
Can I leave him a voice in mail?
我可以在他的语音信箱里留话吗？
No man (or one) is wise at all times.
聪明一世糊涂一时。
Of course, the answer is Chinese.
回答当然是汉语。