complex point

例句：

1. 1. The problem is so complex that it's hard to solve.
   这个问题太复杂了，很难解决。
2. 2. The architecture of the building is complex and requires a lot of planning.
   这栋建筑的构造复杂，需要大量的规划。
3. 3. The company's financial statements are complex and require specialized knowledge.
   公司的财务报表很复杂，需要专业知识。