Why there is telephone lines inside the igloo?

为甚么冰屋内会有电话线的？

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We didn’t even go inside the igloo at first. We just stood outside, our cheeks numb from the cold, and stared at the sky.

开始我们甚至没有走进玻璃房，只是站在屋外仰望天空，把脸颊冻得发麻。

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Continue to work upward so that the top of the igloo is about shoulder height with the person working inside.

继续向上垒直到有里面工作的人的肩膀那么高。出门走走，看看生活在别处的人们这样或那样的活着。

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The rack railway that winds its way up makes its final climb inside the mountain, leaving passengers to emerge blinking onto the snowfield at the top, where the igloo village takes shape every winter.

BBC: Five European winter boltholes