把硬纸板放在袋子内部，这样它在切割的时候就会垫住一层纸，而不会让你刻穿另一面的纸。

Slide the small piece of cardboard in the flat bag, so you have a surface to cut on without cutting through the other side of the bag.

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他拉过一张薄薄的纸盖在画上，这张纸是我平常作画时怕弄脏纸板常作为垫手用的。

He drew over the picture the sheet of thin paper on which I was accustomed to rest my hand in painting, to prevent the cardboard from being sullied.

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接着在气泡垫的上面放一块纸板。

Place one piece of partition assy. On the top of paper pad.

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