这是非常岁，是壁垒森严。
我们的防线壁垒森严。
不同于过去壁垒森严的城邦，现代的金融中心相互的交流尤其重要。
Unlike the walled medieval city-states, today's financial centres are increasingly dependent on their connections to one another.
这个步骤的目标是以一种特殊方式格式化有效负载，以便它能躲避壁垒森严的入侵探测系统（IDSs）。
The goal of this step is to format the payload in such a way that it can evade entrenched intrusion-detection systems (IDSs).
其实，二者有时有着共同的努力方向和认识上的某些共识，彼此间也非壁垒森严，存在着师友关系和互相渗透、转化的情况。
In fact, some common direction of effort, some common sense, some mutual cooperation, infiltration and conversion existed between both thoughts.
其实，二者有时有着共同的努力方向和认识上的某些共识，彼此间也非壁垒森严，存在着师友关系和互相渗透、转化的情况。
In fact, some common direction of effort, some common sense, some mutual cooperation, infiltration and conversion existed between both thoughts.
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