Rsis
abbr. Reference; Special; and Information Section 参考; 专门的和情报科（图书馆协会）
🗣️ 情景例句
I didn't quite catch your name.
对不起，我没听清楚你的名字。
Let me see what's available.
我查一查看有什么班机。
I have no choice.
我别无选择。