系统解析:W: Listen! Somebody's playing the piano.
M: Yeah, it sounds nice, doesn't it? I wish I could play a musical instrument.
W: Do you play the violin?
M: No, but my sister does. Actually she's pretty good at singing, too.
W: I took flute lessons for a couple of years, but I never learned to play very well. I guess I don't have much musical talent.
M: Oh,that's not true. You sing very well. I can't even do that!