He learnt his lesson.

他得到了教训。

youdao

He has learnt his lesson: it doesn't pay to take bribes.

他得到了教训：受贿是没有好处的。

youdao

The singer had learnt his lesson during his stay in Laos where he ate crickets and ended up having diarrhea. Nevertheless, the adventurous singer insists he will never shy away from local delicacies.

力宏在寮国吃蟋蟀得到导致腹泻的教训，尽管如此，这个胆大的歌手仍然坚持不会回避当地美食。

youdao

Steve, or whoever he was, obviously hasn't learnt his lesson.

BBC: Transcript: Cocaine: Alex James in Colombia

He learnt an invaluable lesson there, one that would become his guiding principle at Treasury - that to act too slowly may prove more costly.

BBC: Tim Geithner: What will be his legacy?