Empty plastic bottles are so light they can be blown away by even a gentle wind. It ’ s hard to imagine that this insubstantial throwaway material can really be used to put up a building that will stand up to the elements over a long period of time.
質輕、空心的寶特瓶，風一吹就飄得老遠，很難想像這種看起來弱不禁風、耗損率高的素材，竟然可以拿來作為必須長期承受日曬雨淋的建材。