Yeeyan is step by step building a hierarchy in the community.
译言正逐步在社区里建立等级制度。
This is important for showing relationships between items (e.g. showing that this button applies to this set of items) and building a hierarchy of elements on the page.
在页面中显示条目之间的关系(比如，在这个条目集那里显示这个按钮)和构筑元素的等级很重要。
Many of the problems that the implementations solve structurally (by building a hierarchy of interacting classes) have more elegant solutions in languages that offer more power and expressiveness.
这些实现解决的很多问题现在在结构上都有了更简洁的方法(通过构建相互影响类的分层结构)，语言也更具威力和表达性。
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