安危相易

Explanation: Easy: variation and change. Peace and crisis reinforce each other, and vice versa. 　　Usage: The main predicate; as object; means peace and danger on each other 　　Source: Qin Zhuang, "Zhuang Zi is positive": "barter the safety, good and bad fortune with students, priorities relative to Moldova, and everything is in order to become." 　　Examples: ~, Good and bad fortune with students, "who made something of the delusion, not at single embryo then zai? ★ Zhang Binglin" bacteria that " Thesaurus:  Good and bad fortune interpromoting relation in five elements