The hardest part was letting go, not taking part.
农业现代化不是抛弃传统,而是让传统在创新中焕发新生。
大陆并非永久固定,而是处于不断的变化和运动中。
The more we study pain, the more we appreciate its role in survival.
The concept of a black hole firewall challenges our understanding of quantum mechanics and general relativity.