尽管国会迅速推翻了约翰逊的否决，但该法案的支持者仍然试图通过第十四条修正案来确保其宪法基础。

Although Congress promptly overrode Johnson's veto, supporters of the act sought to ensure its constitutional foundations with the passage of the Fourteenth Amendment.

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受到提议的所有改变都是一项新的边境安全法案的一部分，该法案在众议院通过，但上周在参议院被否决。

All these proposed changes were part of a new border-security bill that passed the House of Representatives but died in the Senate last week.

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但布什的否决并没有把干细胞研究一棍子打死，那些放弃了联邦资金支持的科学家可以按他们的想法进行研究。

Mr Bush's veto does not kill stem-cell research. Scientists who spurn federal cash may do as they please.

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