Na hui wu li shi yan zhi dao/. Di si ce. Na hui wu li shi yan zhi dao/. Di wu ce. Zhong xue wu li ji suan zhi dao/. Shang ce. Er shi wu shi bu bian/. Di si ce. Na hui wu li shi yan/. 4. Gao zhong wu li shi yan=: Zi ran ke zu/. Xia ce. Gao zhong wu li shi yan=: She hui ke zu/. Xia ce. Dang shi gai yao/. Di si ce. Gao zhong wu li shi yan=: She hui ke zu/. Shang ce. Gao zhong wu li shi yan=: Zi ran ke zu/. Shang ce.