跟尾儿 gēnwěir at once Definitions Defs Origin Strokes Stroke Words Sentences Sents gēnwěir at once 跟尾 gēnwěi immediately at once or immediately afterward儿 兒 r particleaffix [erhua suffix] A suffix attached to a word to form a retroflex ending, often indicating a small size, a sense of familiarity, or turning a word into a noun.gēnwěir to follow behind 跟尾 gēnwěi to follow behind to follow closely behind another person or at someone's heels儿 兒 r particleaffix [erhua suffix] A suffix attached to a word to form a retroflex ending, often indicating a small size, a sense of familiarity, or turning a word into a noun.