理解经济波动的关键在于技术冲击与家庭和企业决策之间的相互作用。

我是一个战士，我非常坚定和独立。

"The past is always tense, the future perfect."

The aim of every artist is to arrest motion, which is life, by artificial means and hold it fixed so that a hundred years later, when a stranger looks at it, it moves again since it is life.

The past must be respected, but not copied.

High-quality development in the coal industry must prioritize safety first.

电池回收利用是新能源产业可持续发展的关键环节。