班門弄斧 https://www.youtube.com/watch?v=_oai35VZOBg&list=PLl-MS2zMZDrMxYh58JlLwXKNWKZuBQPMl&index=51
義無反顧 https://www.youtube.com/watch?v=PQD3Ccs-Drk&list=PLl-MS2zMZDrMxYh58JlLwXKNWKZuBQPMl&index=52
