Trace and debug Settings specify trace listeners that collect, store, and route messages, and the level where a trace switch is set.
跟踪和调试设置指定对消息进行收集、存储和路由的跟踪侦听器,并且还指定设置跟踪开关的级别。
Because it's passed by-- can be passed by an oral route it's a disease that's very effectively transmitted in school settings where children are together, or childcare settings.
因为脊髓灰质炎病毒可以,经口传染途径进行传播,因此它是一种,极易在学校传播的疾病,在这些地方孩子们都聚集在一起
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