台子,讲坛
Estrade \Es`trade"\, n. [F., fr. Sp. estrado, orig., a carpet on the floor of a room, also, a carpeted platform, fr. L. stratum bed covering. See {Stratum}.] (Arch.) A portion of the floor of a room raised above the general level, as a place for a bed or a throne; a platform; a dais. He [the teacher] himself should have his desk on a mounted estrade or platform. --J. G. Fitch.