Ssts
abbr. signaling and supervision techniques study 信号传送与监听技术研究; space surveillance and tracking satellite 空间监视与跟踪卫星; space-based surveillance and tracking system 天基监视与跟踪系统
🗣️ 情景例句
Look, simply shape up, or ship out!
看，只有表现好些才可留下来。
The designer is going to create a new type of dress.
服装设计师正在设计新款女装。
Because the equipment for adding sound to films had not yet been developed.
因为给电影配音的设备还没有研制出来。