佢彈鋼琴係自學嘅,冇跟過老師。
佢弹钢琴系自学嘅,冇跟过老师。
keoi5 taan4 gong3 kam4 hai6 zi6 hok6 ge3, mou5 gan1 gwo3 lou5 si1. She learnt to play piano by herself. She wasn't taught by any teacher.
Definitions (Wiktionary)
verb
to study or learn by oneself; to self-study; to do independent study (syn.) 自修