Globalization brings both opportunities and challenges to the industry.

自由是在法律允许范围内做任何事的权利。

To understand chemistry at its most fundamental level, we must look at the dance of electrons in molecules.

没有人是自由的，甚至连鸟儿都被天空束缚。

We are all of us born with a unique set of potentialities, and it is our task in life to realize as many of them as possible.