The structure of DNA was a puzzle that demanded to be solved.
I'm not a smart man, but I know what love is.
历史不仅仅是发生了什么，还包括人们对此的想法和感受。
社会戏剧是一个揭示社会中潜在紧张和冲突的过程。
Science is not just about discovering new things, but also about improving the quality of life for people around the world.
在采矿作业中，安全必须始终放在第一位。
一个想法的价值在于它的使用。
The greatest mistake you can make in life is to be continually fearing you will make one.