出处：按学科分类—语言、文字 中国对外翻译出版公司《汉英成语词典》第211页（212字）
想尽办法，例他为了夺得冠军费尽心机，甚至不择手段，终于还是未能得逞。
He racked his brains and had no scruples in trying to win the championship，but all was a failure in spite of everything he did．