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
We're happy you got the promotion.
很高兴你得到了提拔。
My grandparents live in the house next door.
我的祖父母住在隔壁的房子里。
I'm not sure I can do it.
恐怕这事我干不了。