Luckily, three excellent sources of regular expression theory and practice are available.

幸运的是，有以下三种优秀的正则表达式理论来源可供使用。

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In terms of the interpretive theory, the interpreter must go through three stages: comprehension, deverbalization and expression.

根据释意派理论，在口译过程中译员必须要经历理解、脱离原语外壳、表达三个阶段。

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With compact expression, you can also (at least in theory) use special attributes to create choices.

有了紧凑表达式，您就可以(至少理论上)使用特定属性创建选项。

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Two current exhibitions explore the impact of Darwinian theory on cultural expression.

BBC: Friday 11 September: Darwin special

The Expression of the Emotions in Man and Animals posited the theory that animals express emotion in a similar way to humans.

BBC: Friday 11 September: Darwin special

And our legal theory was that the Sundial was a public forum for student expression, and that Rawitch, as an agent of the state, was prohibited by the Constitution from either censoring its content or exacting punishment after the fact.

WSJ: Best of the Web Today: See You in the Funny Papers