Today, the farmers are building a two-story house right next to their old home in Tong Xin, a small village in China's Anhui province.

如今，他们在老房子旁边盖起了两层小洋楼。

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By converting a five-storey "tong lau" -- an old Chinese building -- with solar panels, a turfed roof and energy efficient appliances, Khan also is keen to emphasize that his eco-friendly flat is as much about preserving the old and a sense of heritage as it is about being green.

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