改变令人不适，但它是进步的必要条件。

"The city is my subject. It's endlessly fascinating to me."

从我巨大的悲伤中，我创作出我的小歌谣。

我们不仅要造好车，还要卖好车，更要服务好车。

In the context of computational learning, the concept of 'probably approximately correct' (PAC) learning provides a framework for understanding the efficiency and feasibility of learning algorithms.

She walks in beauty, like the night