这是省外事办礼宾处的权威翻译：
县长：County Mayor
XX县县长：Mayor of XXX County
常务副县长： Executive Vice County Mayor
XX县常务副县长：Executive Vice County Mayor of XXX
副县长：Vice County Mayor
县委书记：Secretary of CPC ...County Committee
县委副书记：Vice Secretary of CPC ...County Committee
县委常委：Standing Committee Member of CPC ...County Committee