这两个理论认为，当使用于短语、从句或句子中时，词项只有在特定的句法结构中才能语义正确、合乎语法。
According to these two theories, only in certain syntactic structures can a lexical item be semantically and grammatically right in a phrase, clause or sentence.
研究发现：（1）多义动物词项以词汇隐喻，词汇转喻以及语法转喻等认知机制实现意义引申；
Through the study, the author has found: (1) Senses of the polysemous animal lexemes are extended through conceptual metaphor, conceptual metonymy and grammatical metonymy;
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