钢铁行业必须拥抱可持续性，否则就有被淘汰的风险。
The steel industry must embrace sustainability or risk becoming obsolete.
The Langlands program is not a static set of conjectures but a dynamic field of research.
有些难过和痛苦是言语无法抚平的。悲伤，是我们为爱付出的代价。
To sing of one's land is to love it twice.
解释：能吞下船的大鱼，不会在细浅的溪水里遨游；在天空高飞的鸿鹄，不会在肮脏的水池栖息。