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
Or at least give him some advice.
再不然至少可以给他一些忠告。
A little labour, much health.
适量劳动健身大有益。
Would you like a cup of tea, Chen Hui?
你想喝杯茶吗？陈慧？