Don't drag the chair around! It will leave marks on the wooden floor.

不要拖着椅子到处走。这样会在木质地板上留下刮痕。

" To scratch" means that it has little marks on it so that of you put something on top of it, it will leave marks on the metal or the wood or whatever the material is.

“刮”是指它上面几乎没有痕迹，所以你在上面放点东西，它会在金属或木头或任何材料上留下痕迹。