People in the mountain areas have not even heard of trains.
山区的人们甚至没听说过火车。
The intelligence investigation was done on the 130 longevous old people in the city and 180 longevous old people in the mountain area with Hasegawa Dementia Scale(HDS).
应用长谷川痴呆量表对城市130例和山区180例长寿老人进行智力调查。
The mountain people say that, with guides, the journey can be done in fourteen days.
山里人说,有向导的话,这趟旅行可以在14天内完成。
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