别具心肠
      Explanation: Refers to other plans and attempts.
      Source: Zhou Enlai ", held in Yan'an community" double twelve "Memorial lecture at the": "National anti-Japanese war of resistance must move toward a climax. ... ... Chiang Kai-shek unique heart alone, insist on the occasion of the Japanese attack on Sui Dong refused to volunteered Northeast Anti-Japanese Army, forced Zhang and Yang the two generals to continue the civil war. "