Ecos
abbr. 嵌入式可配置操作系统（Embedded Configurable Operating System）；扩展式通信操作系统（Extended Communication Operating System）
🗣️ 情景例句
When I say something, I mean it.
我说的一定会兑现。
I ask him to stay at school.
我要求他待在学校。
Was it Su Lin?
是苏林吗？