2. Onomatopoeic words, as a special language sign, has special form, sound and meaning, special grammatical function and rhetorical function.
认为象声词是特殊的语言符号,有著特殊的形、音、义,有特殊的语法功能和修辞功能。
3. Onomatopoeic words were seen as a special lexicon in modern Chinese for long, but as to its speciality, there aren't any detailed lexical studies now.
象声词长期以来被看作特殊词类,但对其特殊性的具体体现却缺乏专门的研究。