1·First is the definition of this Acknowledgment or ack; both SOAP stacks must understand what an ack is: what it looks like, what it means, and how to send it.
首先是Acknowledgment或者ack的定义；两个soap堆栈都必须理解ack是什么：其像什么，它意味着什么，以及如何发送它。
2·So to complete the scenario, upon receipt of this ACK, the sender resends Message 2 and eventually gets an ACK, as shown in Listing 4 below.
因此完成这一场景，一收到这个ACK，发送方就重新发送Message 2且最终获得一个ack，如下面的清单4所示。
3·The tcp_input () routine on the client side processes the SYN ACK packet, and calls tcp_output () to send an ACK packet back to the server.
客户端上的 tcp_input () 例程处理 SYN ACK 包，并调用 tcp_output () 将 ACK 包发回到服务器。
4·In our dearth of ack-ack guns all sorts of contrivances were used.
在缺少高射炮的时候，我们利用了各种各样的巧妙方法。
5·Now, I assume You are completelY ack-ack free?
现在我想你完全和防空没有关系吧？