That shaved a couple of percentage points from Ms Rousseff's commanding lead, although it benefited Marina Silva of the Green Party rather than Mr Serra.
尽管这对于绿党的玛丽娜·席尔瓦而不是塞拉先生有益，但罗塞芙女士的绝对领先优势因此削减了几个百分点。
Jaime Serra, an economist who as trade minister negotiated NAFTA in the early 1990s, points out that the multiplier effect of exports in Mexico is unusually low.
经济学家Jaime Serra在20世纪19年代初担任贸易部长，参与谈判北美自由贸易协定，他指出目前墨西哥出口的乘数效应非常低。
The gap between her and jose Serra, her main rival, halved between March and December last year and now stands at 14 points.
她与主要对手jose Serra之间的差距从去年三月至十二月之间已经减少一半，现在相差14个百分点。
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