谚语和成语在语言形式、定型程度、语言风格、流传渠道、语用功能等方面有本质区别。“疾风劲草”是“疾风知劲草”整合的结果。由原来的单句形式整合为趋于词的四字格形式,可以看成是一种词汇化的过程。“疾风劲草”既具有谚语性质又具有成语性质,处于边缘形式。 Proverbs and idioms have essential differences in terms of language form, stereotype, language style, circulating channels and pragmatic functions. “Blast fresh grass ” is the result of the integration of “Blast Grass”. It can be regarded as a lexicalization process that the original form of a sentence is integrated into a four-character form that tends to the word. “Blast” is both proverbial and idiomistic, at the marginal level.