1.I don’t really know much about…我对某方面不太清楚，不太擅长...
I don’t really know much about swimming.
I don’t really know much about how to improve handwriting.
2.I’d love to learn more about…我希望学习..我想知道更多关于...
I’d love to learn more about how to get along with my parents.
I’d love to learn more about customs and traditions of some English-speaking countries.
3.When I was growing up..在我成长的过程中..
My dad worked very hard when I was growing up.
My parents had very healthy habits when I was growing up.