outstanding message的意思|示意

Spring contributors, authors, and users alike pack the message board with outstanding content.

Spring 贡献者、创始人和用户都以杰出的内容填满了留言板。

And, if a message for this client is received within the timeout period, the server will find the outstanding request and return the message with the response.

而当尚未超时的情况下收到了该客户的新消息，服务器就会找到未完成的请求，把新消息做为响应返回给客户端。

The reply activity composes a response message for the current outstanding service request.

应答（reply）活动用来为未完成的服务请求组织一条响应消息。