If the sender does not send enough data to fill the maximum segment size (for example, if it performs two small writes followed by a blocking read) then the transfer will pause up to the ACK delay timeout.
如果发送方未发送足够的数据来填充最大段大小（例如，如果它执行两次小的写操作，然后执行阻塞读取），则传输将暂停到ACK延迟超时。