特朗普这次的不开心，要追溯到他的上一个任期 。2018年，美国空军按照惯例，向波音公司订购了两架经过改装的波音747-8，用来替换目前在用的两架老“空军一号”。

Ukrainian President Volodymyr Zelenskiy meets Saudi Crown Prince, Mohammed bin Salman, during his visit to Jeddah, Saudi ...

The upcoming Ukraine-U.S. meeting, reportedly on Tuesday, follows a rare shouting match at the White House between U.S. President Donald Trump and Zelensky in late February, leading to the ...

Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient ...

世界建筑节（World Architecture ...

Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient ...