(informal)cause someone to lose a position of superiority or pre-eminence
(非正式)使（某人）失去优势地位；杀（某人）的威风
will this knock London off its perch as Europe's leading financial centre?.这会使伦敦失去其欧洲主要金融中心的地位吗？。
will this knock London off its perch as Europe's leading financial centre?.
这会使伦敦失去其欧洲主要金融中心的地位吗？。