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
The plan is a simple one.
计划很简单。
English has become an international language.
英语已经成为一门国际语言。
However, a new type of humour, which stems largely from the U.S.,has recently come into fashion.
然而，近来一种新式幽默流行了起来，这种幽默主要来自美国。