有一次，我在维也纳生活一年之后刚刚回家，就接到了为一名德国籍奥运会赛马比赛裁判当翻译的工作，我学到了很多有关这一比赛的知识。
Once just after I returned from my year in Vienna, I was asked to translate for a German judge at an Olympic level horse event and learned a lot about the sport.
从那时起，我摄取了7,500余张X射线的照片，学到很多有关电磁能量的知识。
Since then I’ve taken over 7,500 x-ray images and learned a lot about electromagnetic energy.
我们也可以从邮票中学到很多有关人文、地理、历史和特殊事件的知识。
We can also learn a lot about people, places, history and special events from stamps.
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