tease something out

Từ điển Oxford Advanced Learner 8th

ˌtease sthˈout derived
1. to remove knots from hair, wool, etc. by gently pulling or brushing it
2. to spend time trying to find out information or the meaning of sth, especially when this is complicated or difficult
•The teacher helped them tease out the meaning of the poem.
Main entry: ↑tease_derived