理解黑洞就是理解宇宙的结构本身。
Understanding black holes is understanding the fabric of the universe itself.
The physicality of the material is its meaning.
学习本质上是刺激-反应连接的问题。
The artist must be a servant of the sacred.
树种多样性不仅仅是生态学，它是我们地球肺部的风险管理。