Hangzhou is lucky enough to be one of the first group of cities open to the world.
杭州有幸能够成为(中国)首批向世界开放的城市。杭州有幸能够成为(中国)首批向世界开放的城市。
Because Nixon and Mao Zedong signed the Agreement.
这源于尼克松和毛泽东推动签署的中美《联合公报》。
So they made Hangzhou open to the world.
是他们的努力让杭州向世界敞开了大门。