，永远停在小学四年级。 我最拿手的本领，就是——打算盘的加减法。 后来命运很幽默：我居然被分配到太原重机厂，当德语翻

#我的数学水平，永远停在小学四年级。 我最拿手的本领，就是——打算盘的加减法。 后来命运很幽默：我居然被分配到太原重机厂，当德语翻译。 有一天，中德工程师一起看图纸，讨论一个零件的直径。 图纸上有个符号：Ø。 我看了半天，突然灵机一动，翻译给德国专家： “这个零……不需要了。” 现场突然安静得像停电。中德双方代表一起看着我。 从那天起，我终于明白：直径不能随便取消。 二、English humorous version Because of the Cultural Revolution, my math education stopped at fourth grade. My greatest mathematical skill was simple abacus addition and subtraction. Fate has a sense of humor: I was assigned as a German interpreter at Taiyuan Heavy Machinery Factory. One day, Chinese and German engineers were discussing a machine part. They pointed at a symbol on the drawing: Ø. I stared at it for a long time and suddenly translated confidently: “This zero is not needed.” The meeting room instantly became silent. That day I learned an important lesson: never delete a diameter in international cooperation