复性的

例句：

1. 1. The novel is set in a complex world with many different cultures.
   这部小说设定在一个复杂的世界里，有许多不同的文化。
2. 2. The scientist's research was complex and required a lot of time and effort.
   科学家的研究很复杂，需要大量的时间和努力。
3. 3. The painting is full of complex details that make it difficult to understand at first glance.
   这幅画充满了复杂的细节，乍一看很难理解。