learn from one's mistakes
失敗から学ぶ
learn from past experience
過去の経験から学ぶ
learn German [a trade, dancing]
ドイツ語［商売，踊り］を習う
learn how to cook
調理法を学ぶ
learn how to swim
泳ぎ方を習う
learn one's lesson
教訓を学ぶ
learn one's times tables
九九表を覚える
learn table manners
テーブルマナーを身につける
Learn that which is worth remembering.
((形式))覚える価値のあることを学びなさい（◆that whichよりwhatがふつう）
learn to drive
車の運転を習う
