Both times the KMT and the Communists negotiated in the past, the Communists were in a very weak position, yet they gained the most. Today they're the bigger side, they're the ones afraid of losing face, and they have lots of worries.
過去國共談判兩次都是共產黨勢力很小時佔到便宜，現在他大，愛面子、又有很多顧慮。