你们就靠这一个横行天下？
You guys rely on this to rule over the world ?
但全球金融动荡和阿富汗、伊拉克战争已重创了美国形象那种横行天下无可匹敌的巨人形象。
But the world financial turmoil and wars in Afghanistan and Iraq have dealt a staggering blow to the US image as an unchallenged colossus striding the world .
横行天下