清晰的愿景将障碍转化为垫脚石。
A clear vision turns obstacles into stepping stones.
Games are not just entertainment, they are also an expression of culture and art.
The arithmetic of modular forms is a key to understanding the deeper mysteries of number theory.
解释：药物之间有阴阳、子母、兄弟等配对关系，说明药物配伍的原理。