A salutary experience is good for you, even though it may seem difficult or unpleasant at first.
①It was a salutary experience to be in the minority.
②The letter had a very salutary effect.
《经济学人》一篇关于个人隐私的文章 message services 也出现了这个表达：
这是一个专八 词汇，强烈推荐大家在写作中使用这个词，可以用来替代我们用烂了的“beneficial, helpful”，并且这个词在柯林斯词典中的语域标签是“正式”，在大多数外刊中也经常见到它，因此强烈建议大家使用哦~
[scode type="blue"]see off[/scode]
①When you see someone off, you go with them to the station, airport, or port that they are leaving from, and say goodbye to them there.【为…送行;送别】
②If you see off an opponent, you defeat them.【打败;战胜】
③To make someone go away or leave a place, especially by chasing them.【驱逐】
①Ben had planned a steak dinner for himself after seeing Jackie off on her plane.
②There is no reason why they cannot see off the Republican challenge.
③The dogs will soon see off any burglars.