For the drivers, of course, that means there is virtually no margin for error: they go into the wall, or over the edge, or into each other.

对于司机来讲，当然了，这意味着他们没有丝毫犯错误的余地：否则他们要么撞上山岩，要么他们撞上石礁，要么干脆两个全部都撞上去。

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Opposite horizontal margin constraint. A left float box that has another left float box to its left may not have its right margin edge to the right of the containing block's right padding edge.

对立水平边框限制：如果一个左浮动框的左边还有另一个左浮动框，那么这个左浮动框的右 margin edge 不能在此包含块的右 padding edge 之右。

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Left - Increase the generated box's top margin so that the top border edge is below the bottom margin edge of any left float boxes generated from previous source elements.

left -增加所生成框的上边框，以便上border edge处于由之前的源元素所生成的任一左浮动框的底margin edge之下。

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But some analysts see Toyota gaining an operating margin edge over Honda this year, while Nissan's rapid recovery is too recent to judge the gains' sustainability.

FORBES: Magazine Article

According to the survey, the race is now at 50-47 with Governor Scott Walker leading by 3 points a lead that is on the edge of the margin of error set at plus or minus 2.8 percent.

FORBES: Final Wisconsin Poll Shows Race Tightening On Last Day! Who Will Win The Ground Game?

Paul, before Denver most polls gave Barack Obama a slight edge, often within the margin of error, but an edge.

NPR: After Conventions, McCain Takes Lead In Some Polls