为什么中国人不能当联合国秘书长，美国人也不行，原来大有讲究2

The inability of Chinese and Americans to become UN Secretary-General is due to the veto power of the five permanent members (P5), which could lead to unfairness in decision-making or internal tensions within the UN. The role is typically filled by representatives from smaller countries to ensure a more balanced voice and prevent dominance by any one country, with the selection process requiring consensus from all member states and the P5.