diphenylacetylWiktionary 原文构词拆分di-前缀Two. · Double, twice the quantity.+phenyl词根/词干+acetyl词根/词干词源说明From di- + phenyl + acetyl.释义（英文）名词 Noun(organic chemistry, in combination) A functional group containing two phenyl group attached to an acetyl group.词族派生词（1）diphenylacetyl chloride相关词（1）diphenylacetic acid