do some good/do somebody goodto have a useful effect 有用/对某人有用 She works for a small charity where she feels she can do some good. 她在一家小慈善机构工作,觉得自己在那里能做点有用的事情。
I’ll talk to him but I don’t think it will do any good. 我会找他谈谈,但我觉得不会有用。
A bit more exercise would do you good. 稍微多锻炼锻炼对你有好处。
→ do more harm than good at harm1(1) → do some good/do somebody good at good2(3)