短語(yǔ)詞組短語(yǔ)Counter -example 反例;翻譯counter -example proof 反例證明Gegenbeispiel counter -example 反例making counter -example 構(gòu)造反例the structure counter -example 構(gòu)造反例Heawood 's counter-example 反例counter example of Tutte Tutte 反例counter example -guided 反例引導(dǎo)counter example of heawood heawood 反例 返回 counter example