一辈子 yībèizi HSK5 lifetime Origin Definitions Defs Strokes Stroke Words Sentences Sents 一 yī numeral one one; the number 1; single; alone辈 輩 bèi nounnumeral lifetime (bound form) a person's lifetime or lifespan; one's whole life.子 zi affix noun suffix [suffix] used to form nouns from noun, verb, or adjective roots