McDonald's and other big burger chains have largely been unaffected so far, but that might soon change.

迄今为止，麦当劳以及其他大型汉堡连锁店基本毫发未损。但是，这一形势可能很快就会发生改变。

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Big Mac price differences were even more pronounced in Shanghai: the full range of burger prices across China (10.5-15 yuan) could be found within that one province.

巨无霸价格的差异在上海更为明显：全中国汉堡价格的范围(10.5 ~ 15元)可以在上海一个地方找到。

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Since labor and land are important inputs into the production of Big Macs, these differential costs feed through into the final cost of the burger.

由于劳动力和土地是生产巨无霸的重要投入，由此造成的成本差异会体现在巨无霸的最终成本上。

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The global chain, whose best-known product is the Big Mac burger in a bun, says it will be its first vegetarian outlet.

BBC: McDonald's opens vegetarian-only restaurant

This offering relocates the innards of the Big Mac -- burger, pickle, special sauce, lettuce, cheese -- in a tortilla to create a small burger-burrito hybrid.

CNN: Fast food treat is shrinking

In Seoul, the Big Mac has to compete with Burger King's Whopper, Lotte Burger (a local rival) and South Korean alternatives.

ECONOMIST: Deflating