video conferencing
noun [ U ] uk/ˈvɪd.i.əʊ ˌkɒn.fər.ən.sɪŋ/ us/ˈvɪd.i.oʊ ˌkɑːn.fɚ.ən.sɪŋ/
视频会议;电视会议
a system that allows two or more people who are in different parts of the world to talk to each other and see each other on television screens