This development — and its strong implication for US politics and economy in years ahead — has enthroned the South as America's most densely populated region for the first time in the history of the nation's head counting.
【译文】这一发展——以及它对今后几年美国政治和经济的强大影响——使南部在美国人口普查史上第一次成为人口最密集的地区。
ahead副词 ad.
1.在前;向前The hills ahead are not wooded. 前面的山上没有生长树木。
2.预先,事前You'd better plan ahead. 你最好事先计划一下。
3.领先,占先Two people were ahead of us, and travelling fast. 有两个人在我们前面,走得很快。
4.多赚,赢得
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反对!
一瞅就知道翻的简略版的英翻中，查英英就知道ahead还有in the future的意思 
楼主