[網(wǎng)絡] 邏輯非符號 negation symbol: 否定符號lgn logical negation: 邏輯不存在logical negation operator: 邏輯非操作符logical symbol: 邏輯符號symbol, logical: 邏輯符號下載手機詞典可隨時隨地查詞查翻譯