数一数二 Traditional form: 數一數二 Pinyin (reading): shǔyīshǔ'èr Definitions: (idiom) reckoned to be best or second best; one of the very best (idiom) to list one by one Characters: 数 - count, number, several 一 - one; a, an; alone 数 - count, number, several 二 - two; twice Traditional characters: 數 - count, number, several 一 - one; a, an; alone 數 - count, number, several 二 - two; twice