We have to be part of the solution when it comes to climate change.

宇宙是一个谜题，而化学是其中的一把钥匙。

To think is to confine yourself to a single thought that one day stands still like a star in the world's sky.

The most sustainable forests are those where local communities have both a stake and a voice.

Adapting old programs to fit new machines usually means adapting new machines to behave like old ones.