外婆家的老式自动钢琴还能播放她年轻时最喜欢的曲子。

My grandmother's old ___pianola can still play her favorite songs from her youth.

经过多次彩排，他的演讲就像自动钢琴一样流畅自然。

After many rehearsals, his speech flowed like a ___player piano, effortlessly smooth.