单纯 dānchún HSK4 simple Origin Definitions Defs Strokes Stroke Words Sentences Sents 单纯词 dānchúncí simple word a word consisting of only one morpheme, regardless of the number of syllables单纯疱疹 dānchúnpàozhěn herpes simplex 单纯疱疹病毒 dānchúnpàozhěnbìngdú herpes simplex virus herpes simplex virus (HSV)