The movement is developing,new things have yet to emerge,and they are emerging in an endless stream. 运动在发展中，又有新的东西在前头，新东西是层出不穷的。
However as hacker attack and network virus emerge in endlessly, the problem of network security has become very serious. 然而层出不穷的黑客攻击和网络病毒事件使得网络安全问题突显出来。
