There is no solitude in the world like that of the big city.

我不想成为明星。我想成为一名演员。

The challenge in catalysis is not just making reactions faster, but making them smarter.

Men are afraid that women will laugh at them. Women are afraid that men will kill them.

我们开采的每一桶石油都必须以最小的环境影响负责任地进行。

板块是地幔对流的地表表现。

一个社会文化系统的行为基础设施是其上层建筑的主要原因。