The basic facilities, services, and installations needed for the functioning of a community or society, such as transportation and communications systems, water and power lines, and public institutions including schools, post offices, and prisons.
分词翻译
通信的英语翻译:
communitcate by letter; correspond; correspondence 【计】 communication
系统的英语翻译:
system; scheme 【计】 system 【化】 system 【医】 system; systema 【经】 channel; system