Jens Stober, a 24-year-old university student in Karlsruhe, Germany, has chosen a unique way to commemorate the 20th anniversary of the fall of the Berlin Wall.
詹斯·斯托贝尔，一名在卡尔斯鲁厄读书的24岁德国学生，选择了一个特别的方式来纪念推倒柏林墙二十周年。
Thee department of mathematics in Karlsruhe is one of 11 departments at a large technical university in Germany, the Karlsruhe Institute of Technology.
卡尔斯鲁厄理工学院有11个专业，数学专业是其中的一个。
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