幻灯机 /huàndēngjī/ angolul

overhead projector▼(projector that projects an image over the heads of the viewers onto a screen)
noun
[UK: ˌəʊv.ə.ˈhed prə.ˈdʒek.tə(r)] [US: ˌoʊv.ə.ˈhed prə.ˈdʒek.tər]