The most complex kind of business organization is the corporation. Corporations are designed to have an unlimited lifetime.

最复杂的企业组织形式是有限公司。有限公司被设计拥有无限制的寿命。

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The stoves are designed to have a lifetime of up to three years at a cost of about fifteen dollars.

这个灶具的最常使用年限为3年，造价约15美元。

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A singleton class means that it is designed to have only one instance throughout the lifetime of the program.

一个单独的类，它的设计了程序的整个一生只有一个实例。

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That EPA rule was designed for a lifetime of exposure, the IAEA guideline for short-term exposure.

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The EPA maximum contaminant level is 3.0, but this is a conservative standard designed to minimize exposure over a lifetime, so EPA does not consider these levels to pose a health threat.

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Lederhosen made of leather were designed to be easily cleaned and last a lifetime, so it is not uncommon to find traditional trousers more than a century old.

BBC: In Munich, trachten turns trendy