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Sustainability isn't a choice anymore—it's a responsibility we owe to future generations.
Government has no other end, but the preservation of property.
变革越彻底,对百姓越有利
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。
For the best results with your children, spend only half the money you think you should, but double the time with them.