The most exciting moments in mathematics are when you realize that two seemingly unrelated areas are deeply connected.
种族差异不应在体育运动中发挥作用。
最危险的毒药是成就感,解药是每晚思考明天如何做得更好。
The protection of fishery resources is not a multiple-choice question, but a required question.
革命的道路不是铺满玫瑰的道路。