China's polar icebreaker Xuelong 2 seen at port of Cape Town, South Africa(1/4)

China's polar icebreaker Xuelong 2, or Snow Dragon 2, is seen at the port of Cape Town of South Africa on Jan. 20, 2020. (Xinhua/Liu Shiping)

Photo taken on Jan. 20, 2020 shows a view of Cape Town seen from China's polar icebreaker Xuelong 2, or Snow Dragon 2, as it heads for Cape Town of South Africa. (Xinhua/Liu Shiping)

China's polar icebreaker Xuelong 2, or Snow Dragon 2, heads for Cape Town of South Africa on Jan. 20, 2020. (Xinhua/Liu Shiping)

Table Mountain is seen from China's polar icebreaker Xuelong 2, or Snow Dragon 2, as it heads for Cape Town of South Africa on Jan. 20, 2020. (Xinhua/Liu Shiping)