The recursiveness of phrase structure rules：These rules can generate an indefinite number of sentences,and sentences with infinite length,due to their recursive properties.
由于它们具有循环特征，可
生成无数个长度无限的
http 16555.soupay. 子来。
The recursiveness of phrase structure rules：These rules can generate an indefinite number of sentences,and sentences with infinite length,due to their recursive properties.
由于它们具有循环特征，可生成无数个长度无限的 http 16555.soupay. 子来。
：
上例
、词性
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