Broadcast messages: Advertising messages are displayed in the Travel Agents "queue" where they usually retrieve messages from suppliers regarding their bookings.
广播讯息：广告讯息显示在旅游代理商的“待处理数据队列”里，他们通常从供应商处提取关于订单的讯息放入队列。
In P2P mode, a message producer sends a message to a specific message consumer through a queue, whereas pub-sub is intended for the one-to-many or many-to-many broadcast of messages.
在P 2 P模式中，消息的生产者通过队列传送消息给特定的消息消费者，而发布—订阅模式则以一对多或多对多的方式进行消息的传播。
Try to listen to the radio broadcast inside the Expo Park. It will tell you which pavilions are crowded and how long it will take to get through a queue.
多留意园区内广播提示，会告诉你什么场馆拥挤，排队需多长时间。
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