单词 phonofilm 释义 phonofilm Obs. exc. Hist.|fnflm|Also Phonofilm.[f. phono- + film n.]A cinema film having a sound-track.Orig. a proprietary name in the U.S.1921Official Gaz. (U.S. Patent Office) 8 Nov. 391/2 Phonofilm... Claims use since Jan. 1, 1921....