Usages of jasehi
선생님이 질문을 듣고 자세히 대답해 주셨어요.seonsaengnimi jilmuneul deutgo jasehi daedaphae jusyeosseoyo.
The teacher heard my question and answered in detail.
교과서를 자세히 읽어요.gyogwaseoreul jasehi ilgeoyo.
I read the textbook in detail.
Elon.io is an online learning platform
We have an entire course teaching Korean grammar and vocabulary.