Ritt
abbr. Research Institute of Telecommunication Transmission （中国邮电部）电信传输研究所
🗣️ 情景例句
Thank you for your great service.
感谢你周到的服务。
He's not in. May I take a message for him?
他不在，我能替他捎个口信吗？
There isn't any trouble. I'm just waiting for my change.
没事儿。我只是等着找钱。