This year, a huge circular bore is to be lowered into a layer of sand deep beneath the city, where it will drill a tunnel to link them.
今年，就要在城市地下深处的砂层打通一个巨大的圆形隧道，把地铁站连起来。
This year, a huge circular bore is to be lowered into a layer of sand deep beneath the city, where it will drill a tunnel to link them.
今年，就要在城市地下深处的砂层打通一个巨大的圆形隧道，把地铁站连起来。
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