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。

A thriving forest is a testament to both nature’s resilience and human stewardship.

A man knows when he is growing old because he begins to look like his father.

Simplicity is prerequisite for reliability.

写作是面对世界混乱的一种方式。

永远不要停止学习；世界在不断发展，我们也应该如此。