The only meaningful way to study learning is through objective measurement.
海洋生态平衡是我们共同的责任,没有人可以置身事外。
Sustainable packaging solutions are as critical as the product itself in reducing our environmental footprint.
我想要成为变成一个什么样的人?这是我们每一个人都应该反复思考的问题。
明智而有德行的人在任何时候都愿意为了自己特定阶层或社会的公共利益而牺牲自己的私人利益。
What I am is good enough, if I would only be it openly.