repay someone's effort, time, attention, etc. idiom mainly UK
值得付出努力／时间／精力去做
If an activity, book, etc. repays your effort, time, attention, etc., it is worth the effort or time, etc. that you spend on it.
You should read this article - it would repay your time. 你应该看看这篇文章，非常值得一读。
If you think of these children growing into adults who enjoy and appreciate classical music, then that repays our effort. 如果你认为这些孩子长大成人后会欣赏和鉴赏古典音乐，那我们的努力就没有白费。