他早年就学会了弹钢琴。

He learnt to play the piano at an early age.

《牛津词典》

她学会了自己用脚吃饭、画画和弹钢琴。

She learnt to feed herself, paint and play the piano by using her feet.

youdao

她学会了弹钢琴。

She's learned to play the piano.

《新英汉大辞典》

and had still not learned almost anything. She had one of those teach-yourself-piano books,

但并没有学会。她有一本自学钢琴的书，

和钢琴老师 - SpeakingMax英语口语达人