的意思是用吸尘器来打扫地板或地面。
'to vacuum' means to clean the floor or a surface using a vacuum cleaner.
不应该允许它接触地面或地板，以及与物体摩擦。
It should not be allowed to touch the ground or floor, nor to brush against objects.
伸出手触摸那里的地面或地板，感觉如何？
Reach out and touch the ground or the floor, what does it feel like?
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