英语语法分析

Use deepcopy when serializing subtrees

在序列化子树时使用 deepcopy

Xml.pulldom builds accessed subtrees only as needed.

pulldom只在需要时构建被访问的子树。

You can think of levels in a FOT index as smaller subtrees (buckets).

您可以将FOT索引中的级视作较小的子树(桶)。