This is the 8656th most frequent Korean word.
가입하도록
To join or subscribe.
Here, "가입하도록" is used to indicate encouragement or recommendation to join.
나는 동아리에 가입하도록 권장받았다.
I was recommended to join the club.
In this sentence, "가입하도록" is used to signify a proposal for enrollment.
그는 새로운 서비스에 가입하도록 제안했다.
He suggested to sign up for the new service.
"가입하도록" here denotes motivation for participation.