The focus of his campaign became a proposal to scrap the complex tax code in favor of a uniform flat tax of 13 percent on all Americans.

他的竞选焦点成为了一个提议，他有意简化复杂的税收法规，所有美国公民统一缴纳13％的平头税。

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These systems are on the receiving end of the taxonomy and may consume anything from flat lists to complex hierarchies all the way to complex ontologies.

这些系统位于分类法系统的接收端，它们可能使用任何内容，从简单的列表，到复杂的层次结构。

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When the metal wall is completely open, it turns a flat wall into a complex metal structure like a blooming metal flower, in memory of the punk and R&B culture.

当这个金属墙完全打开，它就从一面平整的墙变成一个像盛开的金属花朵一样复杂的金属结构，以此来纪念庞克和R&B文化。

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Tools, fittings and spare equipment were kept at the St Katherine's Court flat for the complex's refurbishment and other work in the area.

BBC: Northampton council flat used to store tools

For many of us, home means a flat in an apartment complex, where the building management often provides an extra layer of security.

CNN: ASIANOW - TIME Money | Keeping It Safe | 11/99

In a country where few successful politicians are poor, he lives in a modest flat in an austere public-housing complex in Porto Alegre.

ECONOMIST: Brazil