Usages of onrain
집에 컴퓨터가 있어서 온라인 수업을 들어요.jibe keompyuteoga isseoseo onrain sueobeul deureoyo.
I have a computer at home, so I attend online classes.
저는 지금 온라인 수업을 듣고 있어요.jeoneun jigeum onrain sueobeul deutgo isseoyo.
I am taking an online class now.
Elon.io is an online learning platform
We have an entire course teaching Korean grammar and vocabulary.