例句： 對於某些問題我沒有專業性（即我不擅長）， 因此只能問一些不痛不癢的問題。
I am not sure whether 不痛不癢 can be described as "common knowledge " ?
It is because I am not specialized in this field, I can not dig out any further question yet some questions with common knowedge.
Thanks for three repliers' comments, which are valuable to me.
Especially for 老翻哥( 研究生 5 級 ), thank you again.
- Chang-BoeLv 69 years agoFavorite Answer
It should be described as “make no difference (to someone)”.
Make no difference: [for a choice] not to matter to someone.
Pick anyone you like, it makes no difference to me.
不痛不癢cannot be described as “common knowledge”.
Besides, “common knowledge” means 眾所週知.
It is because I am not specialized in this field, I can not dig out any further question yet some questions with common knowledge.
It is because I am not specialized in this field, I cannot dig deeper by asking further questions other than some questions of common sense.
- 老翻哥Lv 69 years ago
recommend the phrase of "scratch the surface"
For example, "We don't know how bad the problem is. We've only scratched the surface."
- TYLv 49 years ago
I am not familiar with some of the things, so I only ask some common questions.Source(s): me