Ecs
abbr. 环境控制系统（Environmental Control System）；发动机控制系统（Engine Control System）；能源通信服务（Energy Communication Service）
🗣️ 情景例句
I think I'll take the afternoon off.
我想下午休息。
You may rest assured that the shipment will be duly delivered.
你们尽可放心，我们会按时交货的。
You can say that again.
说的是。