phone system

Từ điển Oxford Learners Wordfinder Dictionary

noun

a communication system that transmits sound between distant points
• Syn:
telephone system
• Hypernyms:
communication system
• Hyponyms:
MEDLINE
• Part Meronyms:
cable, line, transmission line, central, telephone exchange,
telephone exchange, switchboard, patchboard, plugboard, telephone,
phone, telephone set