英语翻译He looked --him to impress--his mind everything he saw.

He looked at him to impress into/in his mind everythig he saw.
look at,看,固定词组
impress into,用into表示进入的过程
impress in his mind,用in his mind表示在他脑中,
他看着他（另一个人）,想把他看到的所有东西都印入脑海.