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Photo taken on June 26, 2019 shows a view of the Canberra Networking Day in Canberra, Australia. Mutual political trust and cooperation are the "two wheels" that drive China-Australia relations smoothly, Chinese Ambassador to Australia Cheng Jingye said here on Wednesday at Canberra Networking Day, the signature annual event of Australia China Business Council. (Xinhua/Liang Tianzhou)