定義運算符 defining relation symbol: 定義關(guān)系符operation symbol: 操作符號, 運算符號; 運算符號symbol of operation: 操作符號; 運算符號current operation symbol: 現(xiàn)用符號symbol of a unary operation: 一元運算符號下載手機詞典可隨時隨地查詞查翻譯