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，可以生成无数个长度无限的句 http 16555.soupay. 
。
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，可以生成无数个长度无限的句 http 16555.soupay. 。
明：以
例句、词
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