Takayasu's arteritis is a common clinical disease in Norh of China.
大动脉炎是我国北方比较常见的一种临床疾病。
Some of the large countries in Norh America include Mexico and also it is in the top five big countries in the entire America countries in North America.
在北美各国中有一些大的国家，包括墨西哥，还有包括整个美国在内的北美的前五个大国家。
Some of the large countries in Norh America include Mexico and also it is in the top five big countries in the entire America countries in North America.
在北美各国中有一些大的国家，包括墨西哥，还有包括整个美国在内的北美的前五个大国家。
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