Xe đạp biết lội nước
gười đàn ông ở Trung Quốc được nhận bằng phát mình vì lắp đặt thành công chiếc xe đạp vừa đi được trên mặt đất, vừa băng qua đường thủy.Deng Huaibin ở thành phố Nam Kinh, tỉnh Giang Tô tự chế chiếc xe gắn những túi khí gấp lại được trên mỗi bánh xe và 7 cái mái chèo ở phía sau.
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