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数学中的每个问题都是一个等待解决的谜题,而乐趣就在于解决的过程。
Every problem in mathematics is a puzzle waiting to be solved, and the joy is in the solving.
We don't have anything to lose, which is a very liberating feeling.
Sustainability isn't a choice—it's our responsibility to the next generation.
The essence of e-commerce is retail, and the essence of retail is efficiency.