Photo taken on Feb. 9, 2020 shows Brazil's Antarctic research base, the Commander Ferraz Antarctic Station, in Antarctica. China's 36th Antarctic expedition team paid a visit to the Commander Ferraz Antarctic Station on Sunday. (Xinhua/Liu Shiping)

Members of China's 36th Antarctic expedition team visit Brazil's Antarctic research base, the Commander Ferraz Antarctic Station, in Antarctica, Feb. 9, 2020. (Xinhua/Liu Shiping)

Luciano de Assis Luiz, head of Brazil's Antarctic research base the Commander Ferraz Antarctic Station, introduces the situation of the station in Antarctica, Feb. 9, 2020. China's 36th Antarctic expedition team paid a visit to the Commander Ferraz Antarctic Station on Sunday. (Xinhua/Liu Shiping)

Photo taken on Feb. 9, 2020 shows Brazil's Antarctic research base, the Commander Ferraz Antarctic Station, in Antarctica. China's 36th Antarctic expedition team paid a visit to the Commander Ferraz Antarctic Station on Sunday. (Xinhua/Liu Shiping)