On one hand, with economic activity expanding on a global scale, transnational exchanges and increasingly frequent exchanges, regional and cross-regional surge, global public problem increasingly emerges.
On the one hand, with economic activity in the global expansion of cross-border contacts and exchanges become more frequent, regional and inter-regional affairs surge in global public increasingly widespread problem emerged.
On the one hand, with the expansion of economic activity in the global scope, international exchanges become more frequent, regional and inter regional transaction surge, global public problems increasingly emerge.