If this option is enabled, the generated acknowledgment contains up to four SACK options. 如果启用此选项,则产生的应答包括最多四个SACK选项。
From that point the process begins anew, congestion windows again expand, and the SACK overhead picks up again. 此时这个过程重新开始,拥塞窗口又一次增大,而SACK开销也是如此。
The Chair ripped the sack wide, and gathered up a handful of bright, broad, yellow coins, shook them together, then examined them. 主席把口袋扯开,抓了满满一把明晃晃、黄灿灿的大块钱币,攥在手里摇一摇,再细细察看--