Chinese fruits must establish an international standard system to go global.
地质时间不仅漫长,而且复杂,过程以截然不同的速率运行。
积极心理学不是一项观赏性运动
The most perfect education, in my opinion, is such an exercise of the understanding as is best calculated to strengthen the body and form the heart.
A mind conscious of its purity is attached to nothing, neither to the body nor to the soul.