He played his cards shrewdly by being a model prisoner. This enabled him to win the confidence of his guards, who relaxed their vigilance.
許多同伴都受不了折磨病倒了、死了，但逃脫的意志使他支持下去，他努力做工，並儘量使自己表現馴服，讓中共幹部逐漸放鬆對他的監視。