This is a demo used to show how a collection looks on this site.
我在测试，写一篇 collection 文章会是什么样的？我期待的是我们可以在 Blog 里创建一个很深的，层层深入的合集文去探索和分享我们关心的一些深度的内容。
I’m trying this out: what does a collection article look like? I want the blog to hold a deep, nested collection — a place to explore and share the things we care about at length.