learn from
1. 从……中吸取教训
We should learn from his mistakes.
我们应该从他的错误中接受教训。
learn of
1. 获悉
We learned of her illness only yesterday.
我们昨天才听说她病了。
习惯用语I am [have] yet to learn.1.我还不大清楚。In doing we learn.1.[谚]边干边学; 在 实践中学习。Never too old to learn.1.[谚]活到老, 学到老。Soon learnt, soon forgotten.1.[谚]学得快, 忘得快。We regret to learn that ...1.(函电等习用语)惊悉...learn off1.记牢, 背熟