To make friends. 交朋友也是

4. And then there's the most important line...
   还有最重要的一条线
5. A line separating you from the people you work with.
   一条分隔你和同事的三八线
6. It doesn't help to get too familiar.
   关系太好是没有帮助的
7. To make friends.
   交朋友也是
8. You need boundaries between you and the rest of the world.
   你需要分界线让自己远离尘世
9. Other people are far too messy.
   其他人太过于复杂
10. It's all about lines.
    一切都有关"线"

来自《实习医生格蕾 第一季 第二集 Grey's Anatomy S01E02》第 7 行