沃尔沃成立于1927年，以坚实的车体和流畅的北欧设计风格著称。它的名字来源于拉丁语动词“volvere”，意思是滚动。

Knownfor its robust bodywork and sleek Nordic designs, Volvo was founded in 1927with a name derived from the Latin verb "volvere", meaning to roll.

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所以复纵线意思是，如果这两个条件之一-，或者两个都——是成立的，那就继续，执行后面的代码。

So double bar means if this condition or this one — and maybe even both — are true, go down this road and execute that code.

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在1966年，由于空军想要复查Blue Book计划中搜集的最有意思的材料而成立了第二支委员会。

A second committee was set up in 1966 at the request of the Air Force to review the most interesting material gathered by Project Blue Book.

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