复杂

In a sentence

• 这道数学题太复杂了，我花了很长时间才解出来。

  This math problem is too complicated; I spent a long time solving it.

  Shows '复杂' used to describe the nature of a mathematical problem as being intricate and challenging.

• 人际关系往往很复杂，需要我们用心处理。

  Interpersonal relationships are often complex and require us to handle them with care.

  Shows '复杂' used to characterize interpersonal relationships as multifaceted and demanding careful management.

• 那部小说情节结构复杂，充满了意想不到的转折。

  The novel has a complex plot structure, full of unexpected twists.

  Shows '复杂' applied to describe a novel's storyline as layered and intricate.