learn的过去式是什么和现在分词
learn的过去式learned或 learnt，过去分词learned或 learnt。learn的英式发音为 [lɜ:n]，美式发音为 [lɜ:rn]，意思有：得知，学习，学会，习得，记住学习，得知，记住，认识到。learn的用法： 1、Their children were going to learn English 他们的小孩会学英语。 2、It was only after his death that she learned of his affair with Betty...