The synchronous message gets separated from the message set and does not contain any nested messages.
同步消息分解自消息集合，并不包含任何的消息。
One of the input/output messages is nested or contains complex types.
某个输入/输出消息是嵌套的或包含复杂的类型。
If you have a nested build, you might need to thread up through a bunch of error messages to find the actual error.
如果有一个嵌套的编译，可能会需要通过对一组错误消息来仔细进行分析，才能找到确切的错误。
There are three levels: no messages, messages that are not indented, and messages that are indented to show nested calls.
这里有三个级别：没有信息，没有缩进的信息，以及被缩进来表达被嵌套的调用的信息。
The JMS provider must support nested map messages to convert collection classes.
JMS提供者必须支持嵌入的映射消息来对集合类进行转换。
Suppose the exception contained nested exceptions, and those exceptions also may contain other exceptions. You would need to override the execute method to create error messages for each of these.
假设该异常包含有嵌套异常，这些嵌套异常又包含了其他异常，因此我们必须覆盖原来的execute方法，对每个异常编写出错信息。
Status messages also have a user nested inside of them.
状态消息还内嵌了一个用户。
Status messages also have a user nested inside of them.
状态消息还内嵌了一个用户。
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