They are playing the piano

弹钢琴───play the piano;正在───In progress

Did you play the piano as a child?───你小时候弹过钢琴吗？

He can play the piano after a fashion.───他能弹点钢琴.

She's learned to play the piano.───她学会了弹钢琴.

Bill can play the piano, sing and lead his orchestra all at once.───比尔能够同时弹钢琴 、 唱歌和领导他的管弦乐队.

Bill can play the piano, sing, and his orchestra at once.───比尔能同时弹钢琴 、 唱歌和指挥乐队.

you play the piano as a child?───你小时候弹钢琴吗？

to play the piano───弹钢琴

I can play the piano after a fashion.───我多少会弹点钢琴.

He's learning to play the piano.

I taught myself how to play the piano.

You play the piano well.

Nico is learning to play the piano.

I can play the piano after a fashion.