[lɜːn],发音技巧:ear组合发[ɜː]音。The kids were quick to learn.那些孩子学东西很快。Where did you learn to cook?你在哪里学的烹调?Where did you learn to weld?你在哪里学会的焊接技术?How did you learn to bake cakes?你是怎么学会烤蛋糕的?I must learn to bite my lip.我必须学会不随便说话。