Using some telecommunication or data access methods, a message can be the unit of information or data that is transmitted from one program or user to another.

在使用某些通信或数据存取方式时，消息可以是从程序或用户发送给另一方的信息或数据单元。

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In a typical distributed interaction environment, environment information dynamic update is based on Protocol Data Unit (PDU), which does not guarantee reliable message transfer.

在典型的分布式交互环境中，环境信息动态更新是基于协议数据单元(PDU)，它不提供数据可靠性传输保证。

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The claim is that the telecoms companies charge us more per unit of data to send a text message next door than it costs to send a message to Mars.

FORBES: Insane Calculation: It Costs More To Send A Text Next Door Than To Mars