James Hart, commissioner of the City of London Police, told the Financial Times there had been "hostile reconnaissance" of the City on several occasions since September 11, 2001.

　　"Every successful terrorist group pre-surveys its target. There's no doubt that we've been subject to that surveillance and that sort of thing has been successfully disrupted," he told the newspaper.

　　He said that the area had been a terrorist target for three decades, saying: "Look at the number of time we were hit by the IRA. I think (another attack) is a question of when rather than if."

　　Reconnaissance表示“侦察，搜索，踏勘”，尤指为收集军事信息而进行的这种活动，相关词组有：high reconnaissance（高空侦察）；field reconnaissance（野外查勘）；make a reconnaissance of the work to be done（对要做的工作要事先考查）等。

　　伦敦金融城是伦敦的城中之城，面积约为5平方公里，是世界三大金融中心之一。这里聚集了500多家外国银行，180多个外国证券交易中心，每天的外汇交易量达6300亿美元。

　　（中国日报网站编）实践证明经常访问无忧英语教育网 www.51education.net ,能迅速提高你的英语学习能力!积沙成塔,不断提高! 本站所提供的所有信息仅供学校课堂教学及英语学习者学习研究之用，其著作权归原作者及媒体所有。