Seds
abbr. system effectiveness data system 系统效能数据系统; sequential dual-scanning system 顺序双扫描系统; support equipment data system 支援设备数据系统; space electronic detection system 空间电子探测系统
🗣️ 情景例句
Oh, let me think for a minute.
哦，让我想一下。
Could you take a picture for me?
你能帮我拍照吗？
George heard the noise and came downstairs quickly.
乔治听到了响声，迅速地下了楼。