the act of copying or making a duplicate (or duplicates) of something; "this kind of duplication is wasteful" 同义词:duplication,
the doubling of a word or phrase (as for rhetorical effect)
百科解释
In phonetics, gemination or consonant elongation happens when a spoken consonant is pronounced for an audibly longer period of time than a short consonant. Gemination is distinct from stress and may appear independently of it.