Keep a straight face

표정관리하다

You keep a straight face!

야 너 표정관리 해!

It's like torture to keep a straight face 

when someone makes a joke at work.

회사에서 누가 자꾸 농담하면 

표정관리하는게 정말 고문 같아.

That's where we weren't supposed to laugh,

but we really couldn't keep a straight face.

거긴 진짜 우리가 웃으면 안되는 곳 이었는데, 

참을 수가 없었다...ㅜㅜ

I don't remember 

what came to mind at the time, 

but I did mange to keep a straight face.

그 때 무슨 생각이 난 건지 기억은 안나는데, 

진짜 표정관리 하려고 노력하긴 했어.

It was so hard for me to keep a straight face 

when everyone else was laughing.

다른 사람들은 다 웃고 있을 때 

혼자 표정관리 하려니까 너무 힘들더라.ㅋㅋ