摘要
在9·11事件和去年的伦敦地铁爆炸案过后，英国的机场和火车站纷纷对其保安系统进行加强，机场专用铁路系统对此也开始提高重视。
With UK airports and train stations tightening their grip on security in the wake of the 9/11 Trade Centre attacks and last year＇s London bombings it makes sense that the specially designated airport rail services are paying special attention to this area.
