follow something up
phrasal verb with follow verb uk/ˈfɒl.əʊ/ us/ˈfɑː.loʊ/
(US also follow up on something)
B2 追查…的更多情况;对…采取进一步行动
to find out more about something, or take more action connected with it
The idea sounded interesting and I decided to follow it up. 这个想法听起来很有趣，我决定要作进一步的了解。
He decided to follow up on his initial research and write a book. 他决定继续进行他最初的研究，然后写本书。