高分子科学的进步依赖于理论与实验的结合。
In grain trading, transparency builds trust that lasts longer than any single harvest.
Small changes can have big effects when they help people break out of the poverty trap.
我们正在进入一个生物科学将主导知识领域的时代。
The person I am in the company of my sisters has been entirely different from the person I am in the company of other people.