Transformational grammars are more restrictive.转换生成语法局限性更大。You may also check out the grammars'repository.你也可以检查一下语法仓库.There is a very close relation between fuzzy pushdown automata and fuzzy context - free grammars...
The airlessness of the room suffocated her.房间里密不透风，憋得她喘不上气来。Against this brilliant evocation of airlessness we may put Whitman's view of the poet.我们从他这段批评诗人无生气的精采论述中,可以看出惠特曼对于诗人的看法....