The Seventh China-U.S. Sister Cities Conference with the theme of "closer cooperation for sustainable future" opened in Hangzhou on October 27. As an important platform for local exchanges between China and the United States, the event attracts more than 100 guests from multiple states in the United States.

Hangzhou has established the friendly relationship with Boston and other cities in the United States for about 40 years, conducting fruitful cooperation in fields like culture, education, economy and trade. The event promotes the in-depth cooperation between China and the United States to draw a blueprint for sustainable development.