narrowcast 的定义
nar·row·cast or nar·row·cast·ed, nar·row·cast·ing.Radio and Television.
- to aim a program or programming at a specific, limited audience or sales market.
🎓大学词汇窄播狭窄的广播窄带广播狭窄的广播空间
nar·row·cast or nar·row·cast·ed, nar·row·cast·ing.Radio and Television.