VOA慢速英语:美国启动"蓝点网络"计划 抗衡中国"一带一路"战略

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)