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。
Broadcast messages: Advertising messages are displayed in the Travel Agents "queue" where they usually retrieve messages from suppliers regarding their bookings.
这情况有点类似广播：它也不清楚谁有听到讯息，或是它是否真的有被听到。
The situation is somewhat similar to radio, where it is also not clear who hears a message or whether it has been heard at all.
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