进一退二投注法的例子简介：An hour passed quickly. He opened his eyes and looked in the direction he came from. When he saw no one was around, he couldn't help but feel disappointed. He murmured in his heart: Are they going to break their promise?
An hour passed quickly. He opened his eyes and looked in the direction he came from. When he saw no one was around, he couldn't help but feel disappointed. He murmured in his heart: Are they going to break their promise?
