learnt是learn的过去分词和过去式。

studied是study的过去分词和过去式。learn侧重指通过经验、练习或经别人指教而获得知识或技能,强调结果;而study指专心钻研而获得知识,有探讨和研究的意思,强调学习的过程。学习技能向某人学习只能用learn，在…学习只能用study。 扩展资料I've learnt from bitter experience not to trust what he says.我已从痛苦的经验中得到了教训，不要相信他的.话。I learnt of her arrival from a close friend.我从一位好友那里听说她到了。The report found that 30% of the firms studied had failed within a year.据报告称，受调查的公司有30%一年内倒闭了。