The intermediate buffer on the write side allows the write to complete asynchronously.
在写入方面的中间缓冲区则可以让写入过程异步完成。
2
China at the very least would want to establish a buffer on the North Korean side of its border with the country in order to stop a flood of refugees.
至少中国愿意就其与朝方边境建立一个缓冲区，为了阻止难民的涌入。
3
Using the intermediate buffer on the read side allows the kernel buffer to act as a "readahead cache" when the application hasn't asked for as much data as the kernel buffer holds.