寻找互反律是数学史上的一个基本主题。
The search for reciprocity laws is a fundamental theme in the history of mathematics.
皮革行业必须在不影响质量的情况下发展，以满足环境标准和消费者期望。
I'm not a champion, I'm a challenger.
There are no ugly loves nor handsome prisons.
"To be useful was the best thing the old men ever hoped for themselves, and to be aimless was their worst fear."
气候危机是农业面临的最大挑战——也是我们最大的机遇。#
我经历的挣扎和每个女人经历的挣扎是一样的。