Niss
abbr. National Institute of Social Sciences 国家社会科学研究所
🗣️ 情景例句
Your room number is 512. Here's your key.
房间号码是512。这是您的钥匙。
You'd better go and see a doctor about that.
关于那个毛病，你最好去看医生。
Traffic police are sometimes very polite.
交通警有时也很客气。