He taught himself to play the violin.

他自学拉小提琴。

《牛津词典》

He taught himself on the Internet and put his learning into practice.

他在网上自学，并将自己的知识付诸实践。

youdao

He taught himself to play the piano and practised for hours a day.

他自学弹钢琴，并每天练习几个小时。

youdao

He taught himself to be a pilot. During World War II, he designed a machine used to train military aircraft crews to fire guns at enemy aircraft.

VOA: special.2009.01.14

He taught himself how to play the piano.

VOA: special.2010.05.14

By the age of nine, he had taught himself to play the harmonica and had built a radio.

VOA: special.2009.09.27

He taught himself programming so that he could share his passion for photography with others.

FORBES: Step 2 for a Successful Startup: Identify, Utilize, and Develop your Talents or Skills

He taught himself to sail and took part in several big races in Australian waters.

ECONOMIST: Alec Campbell | The

Even more incredible than the mere fact of this feat is that this is not an innate talent, but rather a skill he taught himself.

CNN: How to train your mind to remember anything