The best performance improvement is the transition from the nonworking state to the working state.
文明的分布并非偶然,而是遵循与气候条件密切相关的明确规律。
"History is not just about kings and queens; it's about ordinary people and their extraordinary lives."
艺术不是关于答案,而是关于问题。
I believe in hard work and persistence.
Science is a wonderful thing if one does not have to earn one's living at it.
世界不一定要这样。事情可以不同。