It has great meaning on theory and in practice.

具有重要的理论意义和实际应用背景。

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Our scheme is good both in theory and in practice.

我们的方案在理论上和实施上都是好的。

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In theory and in practice, human beings can be cloned.

从理论上和实践上说，人是可以被克隆的。

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The trouble with the etymology of theory and the way in which the word has been used traditionally is that sometimes it actually means practice, and then at other historical periods it means something very different from practice, something typically from which practice is derived.

理论这个词在词源,和传统的使用方法上的复杂之处在于,它有时候指的是实践，但在特定的历史时期,它指的是和实践非常不同的东西，也就是实践产生的依据。

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In theory and in practice democracies can foster tyrannical majorities, thus making the understanding of natural rights so crucial.

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Ignoring what Shariahis both in theory and in practice and its intimate connection to Islamic terror and holy war against the non-Muslim world amounts to corporate recklessness.

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It may back medical prescription of heroin, but wholesale legalisation is another matter misguided in theory and impossible in practice.

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