面对现实吧!美味的奶油巧克力蛋糕对很多人都很有效,我也不例外。
Success is not final, failure is not fatal: It is the courage to continue that counts.
Nature has been the greatest chemist of all time, and we are just beginning to understand its secrets.
力的统一不仅是数学上的梦想,更是物理上的必然。