美國總統正在對莫斯科進行回訪。
The US president is making a return visit to Moscow.
副總統受到譴責，說他在幾個重大問題上出爾反爾。
The vice-president was accused of flip-flopping on several major issues.
他是總統的亞洲政治智囊。
He's the president's go-to guy on Asian politics.
他贏得了民主黨總統候選人的提名。
He won the nomination as Democratic candidate for the presidency.