他时常伪装自己。From time to time he will take on a new persona.极端分子伪装成医务工作者进入了大楼。The extremists entered the building disguised as medical workers.你从空中是看不见它们的，它们会被精心伪装起来。You won't see them from the air. They'd be very ...
Machine parts were also being shuttled across the border without authorisation.机器零部件也在未经批准的情况下出入边境。Are processes suitable to prevent design changes without appropriate checks and authorisation?程序中是否可以有效阻止未经检查和授权的设计变更?Ens...