-- Against the backdrop of global economic growth, the [symbol of the] bridge has gained some new implications for the Hangzhou Summit. It demonstrates [a general] aspiration for the G20 to become a bridge in [the] global economy[;] a bridge that promotes international cooperation to achieve [a] win-win scenario in the future. [The] lines of the bridge, which [resemble] fiber-optic cables, [convey] a highly relevant [reference to] the connectivity [which has] resulted from IT development. It is our hope that the G20 will serve as a bridge through which all countries will build closer links [between each other - not necessary] and forge a brighter future for global economy. -- This is very good! It is highly advanced English as you are discribing the symbolic meaning of a logo and hence there is some very specific vocabulary for this sort of language. Verbs such as 'convey', 'symbolise', 'epitomise' and many more.