The taxonomy_dhtml module uses a different technique by looping over all the vocabularies and displaying each in a separate block indexed by the vocabulary's vid.
taxonomy_dhtml 模块使用一种不同的技术，它循环遍历所有词汇表，并在以词汇表的 vid 为索引的单独区块中显示各个词汇表。
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The fields required for a flit are its version, vid; the node id associated with the flit, nid; and the flit message itself, which is defined as a 140-character text field.