Phát minh ghế thang máy ở Thượng Hải
Một tòa chung cư cũ ở Thượng Hải, vốn không có thang máy, nay được trang bị một chiếc "ghế thang máy", giúp người già và trẻ nhỏ lên xuống dễ dàng hơn.
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