当美国总统特朗普 (Trump)在白宫椭圆形办公室警告乌克兰总统弗拉基米尔·泽连斯基 (Volodymyr ...

WASHINGTON/MOSCOW, May 20 (Xinhua) -- Ceasefire negotiations between Russia and Ukraine "will begin immediately," said U.S. President Donald Trump after his two-hour call with his Russian counterpart, ...