I don't think you should ever regret anything. Everything happens for a reason.
合作是艺术中的一种慷慨形式。
我们必须倾听科学的声音,并果断采取行动以保护海洋生物多样性。
The world breaks everyone, and afterward, many are strong at the broken places.
The study of automorphic representations is a reflection of the depth of mathematical abstraction.