pick someone's brain
US /pɪk ˈsʌm.wʌnz breɪn/
UK /pɪk ˈsʌm.wʌnz breɪn/

1.
向某人請教, 諮詢某人
to ask someone who knows a lot about a subject for information or their opinion
:
•
Can I pick your brain about your experience with starting a business?
我能向你請教一下你創業的經驗嗎?
•
I need to pick John's brain about the new software.
我需要向約翰請教關於新軟體的問題。