英国伦敦本周二举办了隆重的2012年奥运倒计时钟揭幕仪式，而仅在数小时后，矗立在特拉法加广场的巨型倒计时钟意外停摆。伦敦奥组委官员可谓颜面尽失。

London Olympic organisers were left red-faced on Tuesday when a huge clock in Trafalgar Square marking the countdown to the 2012 Games stopped just hours after being unveiled at a glitzy ceremony.