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They're often alone on a floor, cleaning a vacant room, back to the door, the vacuum's drone silencing all sound.

她们常常独自在一层楼里，打扫空旷的房间，吸尘器的嗡嗡声盖过了一切声音。

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Store things you use regularly, like cleaning products and art supplies, closest to the door to the house.

把那些常用的东西，如清洁工具和艺术挂件，放在房子的入口处。

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The frequency of cleaning, particularly of door handles, has been stepped up.

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But if you do, you will realize that you know the restroom is about to be cleaned because you can hear the cleaning crew banging loudly on the door to see if anybody is inside.

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The ship runs on an open-door policy, to facilitate the work of the cleaning staff, but of course they can lock their rooms if they wish.

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