It is worthy of CCTV's documentary for young children, from kindergarten to primary school! It is worthy of CCTV's documentary for young children, from kindergarten to primary school! It is worthy of CCTV's documentary for young children, from kindergarten to primary school! It is worthy of CCTV's documentary for young children, from kindergarten to primary school! It is worthy of CCTV's documentary for young children, from kindergarten to primary school! It is worthy of CCTV's documentary for young children, from kindergarten to primary school! It is worthy of CCTV's documentary for young children, from kindergarten to primary school! It is worthy of CCTV's documentary for young children, from kindergarten to primary school! It is worthy of CCTV's documentary for young children, from kindergarten to primary school!