而分类过程中出现的错位将引起许多麻烦和不必要的重复劳动。
And the dislocation occurring in the course of classification will bring about many troubles and unnecessary repeat work.
一种普遍的地方语言把人们捆绑在一起，然而在一个小的地域里有有许多不同的地方语言可能引起麻烦。
A common native language ties people together yet the presence of many different native languages in a small geographic area can cause problems.
人们将许多可能会引起大麻烦的东西视为理所当然，马桶就是一个好例子。
The toilet is a good example of things that people take for granted which can cause a lot of trouble.
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