The past is a mirror that reflects the present.
The most important thing in trading is to preserve your capital.
人体是一个复杂的谜题，而病毒只是其中的一部分。
"Courage is not the absence of fear, but the triumph over it."
采矿技术的创新不仅仅是效率问题，还关乎安全和可持续性。
写作不仅仅是讲述故事；它是探索人类经验的深度。