입이 딱 벌어졌어요.
친구네 신혼집이 얼마나 큰지 입이 딱 벌어졌어요.

could i translate: I can not close my mouth (very surprised) when i know my friend has a wedding house very big

Is this corect?
Thank you so much.

Question

입이 딱 벌어졌어요.
친구네 신혼집이 얼마나 큰지 입이 딱 벌어졌어요.

could i translate: I can not close my mouth (very surprised) when i know my friend has a wedding house very big

Is this corect?
Thank you so much.

Answer

You are correct.

입이 (딱) 벌어지다 is an idiom.
It means 매우 놀라거나 좋아하다.