In fact, this is only for constipation is quite serious and difficult defecation talents to use.
其实这只是针对便秘相当严重，而且排便困难的人才使用的。
So I suspect that books will be pushed more and more into those moments of travel or difficult defecation that people still don't quite know what to do with.
所以我猜想，人们读书会越来越少，只有在旅途中或大便干燥时，由于不知如何打发时间，才会读书。
Methods Check 110 patients, who had difficult of defecation in different degrees, were examined by defecography.
方法对110例有不同程度排便困难的患者行排粪造影检查。通过动静态观察排便过程。
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