The implementation was an instance of the message passing broker system variant of the pattern, as in the POSA pattern documentation.

该实现是模式中的消息传递中介系统的一个变体实例，如 POSA 模式文档中所述。

youdao

Hello, this is Emily Posa.

你好，我是艾米丽。

youdao

Hello, this is Emily Posa.

你好，我是艾米丽。

youdao