黃煜清.

台上一分鐘,台下十年功...說話的真本事 = True skill of speech : all preparation are just for a moment / by: 華藝數位股份有限公司.; 黃煜清. (Language materials, printed)

台上一分鐘, 台下十年功 : = 說話的真本事 = True skill of speech : all preparation are just a moment / by: 黃煜清. (Language materials, printed)