They use an enzyme on the walls, it breaks the blood down and makes it easier to clean.
他们在墙上用酶来分解血迹，这样更容易清洗。
The passage down which he led them was softly carpeted, with cream-papered walls and white wainscoting, all exquisitely clean.
他带他们走过一条过道，地上铺着柔软的地毯，墙上糊着奶油色的墙纸，嵌壁漆成白色，一切都是一尘不染，十分清洁。
The passage down which he led them was softly carpeted, with cream-papered walls and white wainscoting, all exquisitely clean.
他带他们走过一条过道，地上铺着柔软的地毯，墙上糊着奶油色的墙纸，嵌壁漆成白色，一切都是一尘不染，十分清洁。
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