酸甜儿 suāntiánr sweet and sour Definitions Defs Origin Strokes Stroke Words Sentences Sents 酸甜 suāntián sweet and sour sour with a hint of sweetness; sweet and sour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.