https://online2.tingclass.net/lesson/shi0529/0001/1195/sl20061205.mp3
https://image.tingclass.net/statics/js/2012
jack of all trades所有贸易的杰克--什么事都会的人
Ralph: I heard John plays guitar, piano and sings.
Jack: Yeah, he's a jack of all trades.
Ralph: 我听说John会弹吉他、弹钢琴和唱歌。
Jack: 是啊,他是个万能先生。