吸取教训

profit
|ˈprɒfɪt; 美 ˈprɑ:fɪt|

~ (by/from sth) (formal) to get sth useful from a situation; to be useful to sb or give them an advantage 获益；得到好处；对…有用（或有益）
[单独使用的动词]
Farmers are profiting from the new legislation.
新法规使农民受益。
We tried to profit by our mistakes (= learn from them) .
我们努力从错误中吸取教训。
[动词 + 名词短语]
Many local people believe the development will profit them.
当地的许多人认为，这项开发将对他们有利。