求翻译：故事发生在18世纪末的彼得堡。出身贫寒的具有德国血统的青年军官盖尔曼爱上了上流社会的丽莎小姐，但由于他们的阶级地位不同，他无法娶贵族小姐为妻。盖尔曼偶然听说丽莎的祖母伯爵夫人有每赌必胜的三张王牌，是什么意思？

The story takes place in 18th century St. Petersburg. German descent with impoverished young officer Gherman Lisa fell in love with high society lady, but because of their different class status, he can not marry a noble lady wife. Gherman occasionally heard Lisa's grandmother Countess has three win

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The story occurs in 18 century's end Peter forts.The family background poor had the German blood relationship young military officer geyl gracefully to fall in love with upper circles of society's Miss Lisa, but because their social class status was different, he was unable to marry aristocrat young

A story in the late 18th century of Petersburg. Was born poor Germany origin young officer Gherman Lisa Lady falls in love with upper-class, but because of their different class status, he could not marry Miss nobles as his wife. Gherman by chance heard Lisa's grandmother Countess has every bet and

A story in the late 18th century of Petersburg. Was born poor Germany origin young officer Gherman Lisa Lady falls in love with upper-class, but because of their different class status, he could not marry Miss nobles as his wife. Gherman by chance heard Lisa's grandmother Countess has every bet and