He looked about the room.

他在房间里四下看了看。

《牛津词典》

He looked about him appraisingly.

他以品评的目光环视四周。

《新英汉大辞典》

He looked about him, but saw no one.

他向四周望去，却不见有人。

youdao

He looked about him. Every voice was still.

VOA: special.2010.01.28

I looked hard at him. I could not have been more surprised if he has said the same thing about Nepoleon, or Socrates,or Solomon.

VOA: special.2010.03.27

I looked hard at my friend. I could not have been more surprised if he has said the same thing about Nepoleon,or Socrates,or Solomon.

VOA: special.2011.03.26

His face gleamed with life and it was clear that he thought while he looked about.

NPR: Excerpt: 'Lost in Uttar Pradesh'

He looked about thirty, with wavy hair and blond stubble on his chin.

NEWYORKER: Deniers

He looked about twenty-one.

NEWYORKER: Magda Mandela