The search for reciprocity laws is a fundamental theme in the history of mathematics.
弓已经弯好拉满 你留心躲开箭锋吧。
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.
一个公司的文化是由它如何对待员工和客户来定义的。
二十年的爱情让女人犹如一片断痕残壁,但二十年的婚姻则让她好似一栋公共建筑。
渔业不仅要追求经济效益,更要注重生态效益和社会效益。