scratch up

基本解釋

Jo: Will she scratch up your back?
喬：她會抓你的背嗎？
No, because the ash—the ash is pulverized rock—it can scratch up the windshield, too.
不行。因為火山灰是巖石微粒，也可以刮傷擋風(fēng)玻璃。
No sharp edges anywhere on the tip so it will not scratch up your screen.
頂端任何一處都沒有鋒利的尖，所以它不會刮壞你的屏幕的。

So it's generally called distribution code and whereas for the previous problems that you pretty much started from scratch, blank files you opened up nano and there was nothing there unless you put it there.
它一般被稱作分布碼，然而,對于之前幾乎要從頭做起的問題,在空白文件中什么都沒有,除非你在里面寫入些東西。
哈佛公開課 - 計算機(jī)科學(xué)課程節(jié)選

And that'll be one sad day if you scratch up this beauty at all.
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