天然气作为清洁能源，将在我国能源结构调整中发挥重要作用。

在变革时期，学习者将继承地球，而知识渊博的人会发现自己装备精良却面对一个不复存在的世界。

The sky is not the limit; it is the beginning.

To be one, to be united is a great thing. But to respect the right to be different is maybe even greater.

Technology alone won't save us; it's how we apply it with wisdom and foresight that makes the difference.

当我们恋爱时，我们最有活力。