VOA常速英语：建造环保住宅

00:00

00:00

MP3下载 文本下载

https://online2.tingclass.net/lesson/shi0529/10000/10178/20181119.mp3

https://image.tingclass.net/statics/js/2012

Direct link Read TranscriptWhen we think about sandbags, we think flood prevention. But did you know that you can use them to build your house? Cal-Earth is a nonprofit that teaches students how to build structures called SuperAdobe, houses that work in harmony with nature. Reporter/Camera: Arturo Martinez