How can we fit more people into cities without overcrowding? Kent Larson shows off folding cars, quick-change apartments and other innovations that could make the city of the future work a lot like a small village of the past.
Category: Enviroment 环境
你好啊 says:
哈哈,为啥自己留言看不见.
admin says:
为了防止垃圾评论,评论需要后天批准的!