These buildings will be disappearing soon in the future.At last In the end, only a few people minority will remember that it, and this will be the memory it's all about the hometown. 

总有一天这些建筑会湮灭在时光的长河中，只有些许人记得，这便是关于故乡的记忆。

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These buildings will be disappear in the future.  At last In the end, only a few people will remember that them.  iIt's all about the hometown [1].

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[1] I am not sure of your meaning here.