一式二份 yīshì'èrfèn in duplicate Origin Definitions Defs Strokes Stroke Words Sentences Sents 一 yī numeral one one; the number 1; single; alone式 shì affixnoun type (bound form) type; form; pattern; style; standard二 èr numeral two the number two; 2份 fèn measure word [classifier] Used for sets of objects, copies of documents, newspapers, or portions of food; also used for people's attitudes or appearances.