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
Frank, you can learn as we go.
Frank，我们玩， 你跟着学。
They cannot help but be grieved by the death of a friend.
眼见朋友死亡，自己却无能为力，他们感到深深的悲哀。
Yes. I do.
是的，我喜欢。