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Paper seems completely harmless, but deployed properly, it can be a serious weapon: paper cuts are just the worst. 纸看起来无害，但合理使用的话，它也能成为犀利的武器：最严重的状况就是被纸割伤。 It’s all to do with nerve endings. To start with, there are lots more pain receptors embedded in your fingertips than almost anywhere else in your body. So while a paper cut on your arm, or thigh, or ankle might still be annoying, it would probably be more trivial than the intense fiery quality that finger-based paper cuts tend to have. 这跟神经末梢有关。首先，指尖的痛觉感受器比其他任何身体部位要多得多。所以，虽然纸割伤胳膊、大腿、脚踝也很疼，但也要比割伤手指那种火辣辣的疼痛感要轻得多。 | 
