And a vigorous and growing underground (black) economy makes a big difference.

同时一个活力且持续增长的地下(黑色)经济产生了很大的差别。

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The problem with getting agreement on tax matters is that the interests of big countries are not aligned-indeed there is vigorous competition on tax.

各个大国的利益差异是无法在税收问题上达成一致的关键所在，事实上，税收上的竞争相当激烈。

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With the petroleum industry and the automobile industry, it is called three big industries in the world and obtains vigorous development in various countries.

它和石油、汽车业并称为世界三大产业，得到世界各国的大力发展和推崇。

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