Russian President Vladimir Putin shakes hands with U.S. President Barack Obama. 俄羅斯總統普京與美國總統歐巴馬握手

Mikhail Klimentyev/Sputnik/Kremlin/Reuters
World leaders meet
Russian President Vladimir Putin (L) shakes hands with U.S. President Barack Obama as they meet during the World Climate Change Conference 2015 (COP21) at Le Bourget, near Paris, France.
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