🧩 词语组成解析
abbr. national astronomy space observatory 国家天文学空间观测台，国家航天天文台
🗣️ 情景例句
Thank you, sir.
多谢，先生。
The interviewer is not supposed to ask.
面试人也不应该问这个问题。
No. Two visitors have just arrived and I want to give them something nice to eat.
不是。我家刚来了两位客人，我想煮些好吃的招待他们。