This is the 16710th most frequent Korean word.
사전청약을
"사전청약을" refers to "pre-registration or pre-application for housing."
The word '사전청약을' is used as a direct object, indicating the action of applying.
나는 사전청약을 신청하려고 준비 중이에요.
I am preparing to apply for the pre-sale reservation.
In this case, '사전청약을' functions as the topic being referred to regarding actions to take while engaging in it.
사전청약을 할 때 주의할 점이 많습니다.
There are many points to be careful about when doing pre-sale reservations.
Here, '사전청약을' is mentioned as the means through which individuals achieve home purchases.