The beauty of computational complexity lies in its ability to classify problems based on their inherent difficulty.

"Silence is the language of the oppressed."

采石场运营中的每个挑战都是创新和改进的机会。

The strength of a building is not just in its materials, but in the spirit of the people who use it.

书是一个你可以握在手中的世界。

友情是两颗心灵寄宿在两个身体中。