sustainable – adj. involving methods that do not completely use up or destroy natural resources
infrastructure – n. the equipment and structures (such as roads and bridges) that are needed for a place to operate effectively
summit – n. a meeting or series of meetings between the leaders of two or more governments
vacate – v. to leave
bilateral – adj. between two sides
network – n. an interconnected group or alliance of persons or businesses
standard – n. a level of quality that is considered acceptable or desirable
suit – v. to be proper or suitable for (someone or something)