运货火车；递送消息的信使。
一只信鸽被放出去递送消息。
认为您是在递送消息而结果得到返回的消息是有用的。
It is useful to think that you are sending in messages and as a result getting back return messages.
为酒店客人和酒店部门递送消息，包裹，邮件和报纸。
Delivery of messages, parcels, mails and newspapers to hotel guests and other internal department.
这使得在设计应用的时候，可以只关注于组件部分，而把消息传递给通信层去递送。
This allows the design of an application to focus on the component parts, and hand off messages to the communication layer for delivery.
无法递送短消息。请确保短消息服务地址输入正确，然后再试。
Message undeliverable. Make sure the SMS address was entered correctly and try again.
无法递送短消息。请确保短消息服务地址输入正确，然后再试。
Message undeliverable. Make sure the SMS address was entered correctly and try again.
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