如今，年满18周岁或18周岁以上的公民都有选举权。

Today every citizen aged eighteen or over has the right to vote.

《新英汉大辞典》

十八岁和十八岁以上的公民有选举权。

Citizens of eighteen years and upwards have the right to vote.

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但有一点是没有、也不应有争议的，那就是：每个美国公民必须平等享有选举权。

But about this there can and should be no argument: every American citizen must have an equal right to vote.

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