短语词组短语screen -buffer 屏幕缓冲区Off -Screen Buffer 缓冲区;离屏缓冲区;屏幕缓存active screen buffer 作用中屏幕缓冲区;现用屏幕缓冲console screen buffer 缓冲区virtual screen buffer 虚屏缓冲区leaves screen buffer 离屏缓冲区 返回 screen buffer