Chinese wall

chinese-wall的词性：
n.（名词）

1. A barrier, especially one that seriously hinders communication or understanding:
障碍：障碍，尤指严重阻碍交流或理解的障碍：

“still believe a Chinese wall can exist between public and private selves”(Gail Sheehy)
“仍相信在公众形象与真实自我之间存在着障碍”(盖尔·希伊)

chinese-wall的词源：

2. After the Great Wall of China
源自 Great Wall of China