This paper states the definition,characteristics,technica support of VPN,discusses how to plug up the VPN Safety lcak,points out the importance of in stallating personal firewall on inaividual computer.
本文论述了虚拟专网(VPN)的定义、特点、技术支持及如何堵住VPN安全漏洞等问题,同时也阐明了在个人计算机上安装个人防火墙的重要性。
A dense mass of material that obstructs a passage.
堵塞物堵住通道的一团稠密的物质
The way was blocked up by vehicles
道路被车辆堵住了。
The breach was stopped up with sand bags.
这处裂口用沙袋堵住了。
He stopped the leak in the pipe.
他堵住管子上的漏洞。
Look out of the way.You are blocking the passage.
让开。你把道路给堵住了。
The entrance has been boarded in.
入口处用板堵住了。
The chimney is almost choked up with soot.
烟囱几乎被烟垢堵住了。
a walled-up door, fireplace, passage
用砖堵住的门、 壁炉、 通道.
Bricked up the windows of the old house.
用砖堵住旧房子的窗户
The chimney is almost chocked up with soot.
烟囱几乎被烟灰堵住了。
linking their arms to block the driveway.
手挽手的堵住车道。
He blocked up the rat's hold.
他将老鼠的洞堵住了。
plug a leak in the barrel
用塞子堵住大桶的漏洞.
Plug a leak in the barre
用塞子堵住大桶的漏洞
The ditch has earthed up again
这条水渠又堵住了。
The drain was choked with mud.
排水管被泥堵住了。
The fallen trees obstruct the road.
倒下的树将路堵住了。
Large boulders obstructed the entrance to the cave.
大石头堵住了洞口。