ReiserFS uses a specially optimized b* balanced tree (one per filesystem) to organize all filesystem data.

ReiserFS 使用了特殊的优化 b* 平衡树（每个文件系统一个）来组织所有的文件系统数据。

youdao

Add and Remove operations are typically expensive since Binary Search Trees require that a tree be balanced.

添加和删除操作的开销是很大的，只主要是因为对半查找树的平衡性所决定的。

youdao

It is a shame that the fourth tree is almost clipped off, and there is just a little too much space to the left which, because of the clipped tree, isn't balanced on the right.

很遗憾第四棵树几乎要被剪掉，照片左侧似乎留空过多，因为那课未入镜的树使得右侧也不那么平衡。

youdao

Players choose one of three unique and balanced races (European, Asian and Arabic) -- each possessing its own architecture, technology tree and unit types.

CNN: Tsar: Burden of the Crown treads familiar ground