얼굴을

얼굴을

"얼굴을" translates to "face" (as a grammatical object) in English.

Here, '얼굴을' refers to 'face,' and the phrase '얼굴을 펴다' is an idiomatic expression meaning to brighten up one's face or mood.

그는 친구들을 보고 얼굴을 펴고 웃었다.

He saw his friends and brightened up his face with a smile.

In this sentence, '얼굴을' simply refers to 'face' as the object of the verb 'to examine'.

나는 그의 얼굴을 자세히 살펴보았다.

I closely examined his face.

Here, '얼굴을' also refers to 'face,' and it is the object of the action 'to look at.'

그녀는 자주 거울 앞에서 자신의 얼굴을 본다.

She often looks at her face in front of the mirror.