阴魂不散｜yīn hún bú sàn

Meaning: “lingering ghost or spirit that cannot be dispersed;” often used to describe a problem or trouble that refuses to go away or is difficult to resolve.

Original: “人类社会发展进程曲折起伏，各国探索现代化道路的历程充满艰辛。当今世界，多重挑战和危机交织叠加，世界经济复苏艰难，发展鸿沟不断拉大，生态环境持续恶化，冷战思维阴魂不散，人类社会现代化进程又一次来到历史的十字路口。“