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Pro vložení Vašeho dotazu - založte prosím nové téma zde- What if all roads went underground
- Initially, what would become the London Underground consisted of tracks dug slightly below the surface and then covered over. But as the technology improved, and trains switched from steam-powered to electric, the lines went deeper. Now the ground beneath Londoners’ feet hums with an extensive network of Tube lines ferrying people about the city speedily, efficiently – and out of sight. อ่านต่อเพิ่มเติม> โรงเรียนฉวาง สาระน่ารู้> หลอดเลือดแดง
- Vložil: Anshul v 09:37 dne 22.06.2022
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