Chemistry is the art of building bridges between the microscopic and the macroscopic.

是印度给了我们表达所有数字的巧妙方法，每个符号都有一个位置值和一个绝对值。

The food system must evolve to meet the needs of a growing population.

电影应该是它所来自社会的反映，也是世界的镜子。

最有效的领导者是那些以身作则的人。