From the example, the message contents are shown in Listing 3.
从示例中可以看到，消息内容如清单3所示。
When the message contents have been updated, you can save the message for reuse.
在对消息内容进行更新后，您可以保存该消息以便重用。
There is no guarantee that the recipient has read or understood the message contents.
但是并不保证收件人已经阅读或是已经理解了信息的内容。
There is no guarantee that the recipient has read or understood the message contents.
但是并不保证收件人已经阅读或是已经理解了信息的内容。
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