It is sometimes difficult to distinguish between the element of envy itself and the defences against it.
有时候很难区分哪些是嫉羡的防御，哪些是嫉羡本身。
However, this is not always the case, and it is sometimes difficult to distinguish between subsystems and localities.
然而这并不是一成不变的，而且有时也很难区分出子系统和位置。
Sometimes it is difficult to distinguish between application and business logic and connectivity and integration logic.
有时很难在应用程序和业务逻辑与连接和集成逻辑之间进行区分。
A medium like the Internet blurs the borders between companies, sometimes making it more difficult to sight a potential rival or to distinguish between ally and foe.
像英特网这样的媒体公司模糊了两者的界限，有的时候区分潜在的对手或者是区分盟友和敌人是很难做到的。
A medium like the Internet blurs the borders between companies, sometimes making it more difficult to sight a potential rival or to distinguish between ally and foe.
像英特网这样的媒体公司模糊了两者的界限，有的时候区分潜在的对手或者是区分盟友和敌人是很难做到的。
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