模仿句子：

But seven years ago, she made a startling and disturbing discovery: Her grandfather was a notorious Nazi commander who ran a concentration camp where thousands of people were put to death. 

 

翻译：

但是7年前，她发现了一个令她吃惊而又困扰的事实：她的外祖父是个臭名昭著的纳粹司令官，管理过一处屠杀了成千上万人的集中营。