Sirin
abbr. single readiness information system 独立战备情报系统
🗣️ 情景例句
Good morning, sir. May I help you?
早安，先生。能为您服务吗？
To teeter-totter
玩跷跷板
As he had never been there before, he found a great deal to interest him.
由于他从未去过那儿，结果他发现许多有趣的东西。