此处的关键在于，我们希望将访问者中的功能分解为多个较小的片段，随后重新组合它们来构建复合功能。

The key here is that we want to decompose the functionality in our visitors into smaller pieces and then recombine them to build composite functionality.

youdao

此处的关键在于，我们希望将访问者中的功能分解为多个较小的片段，随后重新组合它们来构建复合功能。

The key here is that we want to decompose the functionality in our visitors into smaller pieces and then recombine them to build composite functionality.

youdao