Every problem in mathematics is a puzzle waiting to be solved, and the joy is in the solving.
金钱只关心所有人共有的东西:它要求交换价值,它将所有质量和个性归结为问题:多少?
过去从未死去,它甚至还未过去。
You are too generous to trifle with me. If your feelings are still what they were last April, tell me so at once. My affections and wishes are unchanged, but one word from you will silence me on this subject for ever.
能源转型不仅仅是化石燃料向可再生能源的转变,更是确保这一过程对所有群体都公正且包容。
每天都在跳曳步舞