Australia's Prime Minister Malcolm Turnbull (L) Turkey's President Tayyip Erdogan (2nd L) U.N. Secretary-General Ban Ki-Moon (3rd L) German Chancellor Angela Merkel (3rd R) World Bank President Jim ... 較多Australia's Prime Minister Malcolm Turnbull (L) Turkey's President Tayyip Erdogan (2nd L) U.N. Secretary-General Ban Ki-Moon (3rd L) German Chancellor Angela Merkel (3rd R) World Bank President Jim Yong Kim (2nd R) and U.S. President Barack Obama pose for the traditional family photo during the Group of 20 (G20) leaders summit in the Mediterranean resort city of Antalya, Turkey, November 15, 2015. REUTERS/Cem Oksuz/Pool 較少