Developing a function that requires communication between two distributed components can be surprisingly difficult when you consider all the possible failure scenarios.
考虑到所有可能的出错情况，开发一种需要在两个分布式组件之间实现通信的功能可能会异常困难。
While English can be difficult to learn, it is a very useful tool for communication.
尽管英语学起来可能有点难，但它是非常有用的交际工具。
English can be difficult to learn, it is a very useful tool for communication.
尽管英语难学，但它对于交流很有用。
Communication can also be very difficult and challenging, and even sometimes very uncomfortable.
但有的时候，沟通也可能很困难，甚至另人难受。
Orientation can be difficult to perceive with some shapes or at small sizes, though, so it's best used as a secondary communication vector.
在某些形状下，或者尺寸较小时，方位是比较难以察觉的，因此它最好作为次要的传达矢量。
However, culture is the most difficult communication and can not be equal.
但是文化却是最难沟通和不可平等的。
However, culture is the most difficult communication and can not be equal.
但是文化却是最难沟通和不可平等的。
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