This means that several asynchronous reads complete out of order (as discussed before in section 3.6.2), and byte chunk streams returned by the pending reads will not be processed in order.
意思是很多异步读无顺序完成(像在3.6.2讨论的)，通过异步读操作无序的返回字节块流。
2
Asynchronous pending reads and byte chunk package processing problem.
异步等待读和字节块包处理问题。
3
We perform an asynchronous WSARead (..) (see OnZeroByteRead (..)) with a zero byte buffer.