这次紧张的竞选几乎是上个月在佐治亚州和南达科他州选举的翻版，由一个共和党的挑战者竞争一个现任的民主党人。

The tight race is almost a duplicate of the elections in Georgia and South Dakota last month that pitted a Republican challenger against a Democratic incumbent.

《柯林斯英汉双解大词典》

这句话的意思是：“现在离开选举只有一个星期了，但是，共和党和民主党在竞选方面仍然不分上下，没有一个专家能预测到底那个党会在竞选中获胜。”

Right now, only a week from the election, the republicans and the democrats are running neck to neck and none of the experts can predict which party will win.

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