中国与主要大国的务实合作继续发展，与周边国家的睦邻友好不断推进，与广大发展中国家的全面交往深入发展，与各国互利共赢的格局逐步形成。

China’s practical cooperation with major countries continues to grow, 

its friendly relations with its neighboring countries have developed steadily,

and it is forgoing strong ties with other developing countries.

This has given rise to a new relationship of mutual benefit and win-win between China and other countries. 

请问forgo和tie在文中什么意思？