There are a lot of ways to make sure you proofread it well (like printing it out), but one of the more interesting ways we've seen is to read it from the bottom up.

有很多方法都可以让你校对好(比如说打印出来检查)，但在我们看来有一个最有趣的方法就是从末尾读起。

youdao

Using clever fonts, making toner cartridges last longer and saving paper are all bottom-up ways to cut printing costs.

使用巧妙的字体，延长磨粉盒的使用期限，节约纸张都是自下而上的缩减打印成本的方法。

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The printing method includes the following procedures: when the printing tile moves to the bottom of the cylinder, powder filling spiral cylinder pours the powder evenly on the areas to be printed;

印刷方法包括： 待印瓷砖移动到滚筒下方；灌粉螺旋筒将粉态色料均匀投放至滚筒施印区域；

youdao

Glancing at the bottom, this is pretty arbitrary, but I chose to format my string as follows: % 1f so at the bottom here I'm printing out %.1f, which quick sanity check means print just one digit after the decimal place.

看下这个底部，这个是相当随意的，但我选择把我的字符串格式化成这样：,所以在这个底部我打印输出，提醒一下，这是一个只打印出,小数点后一位的方法。

哈佛公开课 - 计算机科学课程节选

The idea, for instance, that the printing press rapidly gave birth to a new order of information, democratic and bottom-up, is a cruel cartoon of the truth.

NEWYORKER: The Information