mid the mist-cloaked, forested slopes of the Dyfi Valley, outside the Welsh market town of Machynlleth, is a remarkable sight: a seemingly ramshackle collection of log cabins, old wind turbines, thatched huts, steel tubes and funicular railways, rising from the banks of a former slate quarry. 

อ่านต่อเพิ่มเติม  โรงเรียนบ้านนาเส 

สาระสำคัญ  histamine