学习围棋需要花时间来掌握它的各种复杂规则。

It takes time to learn all the ___intricacies of Go's rules.

这部小说的情节非常复杂，需要仔细阅读才能理解其中的微妙之处。

The novel's plot has many ___intricacies that require careful reading to fully understand.