Philosophy is often described as a difficult subject. There are various kinds of difficulty associated with it, some avoidable.

常有人说哲学是很难的一门课。与哲学相关的难处，有各种各样的；有些是可以避免的。

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They are usually avoidable with some research or planning, but once you find yourself faced with a fee, there is often little you can do to avoid it.

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These mishaps are completely avoidable with some expert guidance.

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Despite the scale of the humanitarian disaster, some of the suffering is avoidable.

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