what we've learnt from this story,我们从这个故事中学到了什么

learn from:向 ... 学习

We should learn from her undaunted spirits.

我们应该学习她那种不屈不挠的精神。

词义辨析:

learn by, learn from这两个短语的共同意思是“学习”。其区别是：

learn by指“通过…学习”,强调“方式”;而learn from指“从…中学习”,强调“来源”。试体会:

You can learn by doing.

你可以从实践中学。

We should learn from failures and setbacks.

我们应该从失败和挫折中吸取教训。

另外, learn from可用于表示“向某人学习”;而learn by无此意义。

It's hard to know if any new obesity drug will ever really work.新的肥胖治疗药物是否有效也很难说

it's hard to:做某事困难

It's hard to get a word out of them.

从他们身上一句话都套不出来。

It is hard to sleep without a cooler in this room.

没有空气调节器，在这间屋里很难入睡。