Simply fold the sheets of the paper, blank side facing up, use a paper punch and thread them together with a ribbon.

只需要用订书器或是线把这些纸钉在一起，空白的一面朝着一个方向即可。

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Punch a hole in the middle of the paper cover where the hole of the spool is. Now your hole should run through the paper, spool, and cardboard without any obstructions.

在纸片棉线轴洞的位置打个洞，这个洞贯穿了纸片、棉线轴和硬纸板，洞内没有其他遮挡物。

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The PIN digits you punch into an ATM’s keypad are leaving traces of themselves behind in the form of heat, says a paper recently presented by a team of UC San Diego security researchers.

加利福尼亚大学圣地亚哥分校的研究小组在近日发表的论文中指出，你在ATM机上键入的密码会以你手指余温的形式留下线索。

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These loyalty cards are designed to replace the traditional paper punch cards that provide, say, a free coffee after buying ten coffees.

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Small businesses are looking at an increasing number of digital loyalty programs, which replace the traditional paper punch card and help merchants reward their repeat customers.

FORBES: Swipely Expands Credit Card-Based Loyalty Service

In order to write using the slate and stylus a thick piece of paper is placed face down in the slate, the stylus is used to punch out dots in the paper.

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