The opening of national borders (to) the flow of goods services has made universities a powerfulforce (for) global integration .请问括号出to和for有什么区别.感觉to和for两地方都可用,还有to和for有什么主要区别?

问题描述:

The opening of national borders (to) the flow of goods services has made universities a powerful
force (for) global integration .请问括号出to和for有什么区别.感觉to和for两地方都可用,还有to和for有什么主要区别?