The future of petrochemicals lies in sustainability and efficiency.
当儿童还没有发展起控制能力的时候,“让儿童想干什么就干什么”是与自由观念相违背的。
The destiny of world civilization depends upon providing a decent standard of living for all mankind.
Every challenge is an opportunity to learn and grow.
科学不仅仅在于积累事实,而在于对其精神的深入理解。
The work of art is a fragment of the divine.
记忆是一种责任,而不是负担。