President Biden calls for largest economies to step up efforts to tack… stocking 0 29 2021.04.23 09:05 https://youtu.be/l_t9VxfewIg + 1 '패권 충돌' 속 서먹한 바이든-시진핑 첫 화상 대면... 中 기존 입장 되풀이 The first day of the climate change summit was also a crucial moment for U.S. President ...