By Imogen Foulkes, Geneva

媒体英语会带大家一起学习BBC撰稿人在报道世界大事时常用到的单词和短语。

Background: 据瑞士官方报道,一组持枪歹徒袭击了巴塞尔城市里的一所赌场，抢劫了几十万英镑。 这宗抢劫案发生在星期天凌晨，当时这所被称为欧洲小拉斯韦加斯的赌场正在对外营业，场内有很多客人和工作人员。

Swiss police are describing the raid as highly professional and worryingly violent.

Ten masked men, armed with machine guns and pistols, stormed the casino, breaking down the entrance door with a sledge-hammer.

Witnesses among the 600 guests say they were ordered to lie on the floor. Some were injured by being stepped on or hit by the robbers.

The gang emptied the casino's cash registers of hundreds of thousands of pounds, and tried to get into the casino's strongroom by firing shots at the door, but were unable to break the lock.

It's thought the gang, who witnesses say spoke French, may have escaped to France. The border is just 200 metres from the casino.

Swiss and French police are now working together to track the gang down.

• professional [prə´feʃənəl]   a.职业的 n.自由职业   (初中英语单词)
• unable [ʌn´eibəl]   a.不能的；无能为力的   (初中英语单词)
• working [´wə:kiŋ]   a.工人的；劳动的   (初中英语单词)