Gets a value that indicates the current state of the communication object.
获取一个值，该值指示通信对象是否已被释放。
This project, the result of long elaboration, is the object of my present communication.
这个研究了很长时间的计划，就是我今天报告的内容。
This project, the result of long elaboration, is the object of my present communication.
这个研究了很长时间的计划，就是我今天报告的内容。
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