To create figurative metonymy words by using metonymy rhetoric is one of the Chinese characteristics and the concern of Chinese study, but this Phenomenon is not important to TCFL.
运用借代辞格创造形象化的借代词语是汉语的一大特色，是汉语本体研究的关注点，但在对外汉语教学领域并未引起足够的重视。
A study of the process of their grammaticalization will benefit the teaching of functional words in TCFL.
它们语法化过程的研究对改善对外汉语的虚词教学大有裨益。
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