擦掉：用尖锐的边缘或工具擦掉（物体或表面上的东西）。
划掉：在写下的东西上划掉一条线。
... cop 纺锤状线团、管纱... liquidate 清算 scratch off 速写 ...
... 刮痕硬度 scratch hardness 刮下 scratch off 筛选；屏障；遮蔽；屏蔽 screen ...
... Gas station： 加油站 Scratch off： 擦去；划掉 Top prize： 最高奖项 ...
Creative calendar allows you to scratch off days that passed.
创意日历，可以过完一条就刮掉一天。
Dye sublimation transfer printing is the best option because the ink penetrates into the fabric and won't scratch off, like latex, he says.
巴图斯科说，染色升华传递喷印技术是最佳选择，因为油墨会渗透进织物内，不会像乳胶一样容易被刮掉。
Individual skin cells just aren't that important to your overall survival. But you're less likely to scratch off a patch of critical brain cells.
单个的皮肤细胞对你的整个存活来说并不是那么重要，但是你极少会去刮死一片重要的脑细胞。
You're not going to start for the rest of your life if you ever need to solve a problem with a computer from scratch, odds are you're going to reach for some off the shelf packages or libraries or tools that other people wrote so that people like us don't have to reinvent the wheel again and again.
如果你想用Scratch来解决问题,却使用其他人写的程序,或者利用现成的资料或工具,这样以来,我们的确可以避免做重复性的工作,但却永远学不会编程。
计算机科学课程节选 : 哈佛公开课
Scratch off those hard to find and expensive items like Wii gaming consoles and big flat-panel screens.
When users scratch off the labels, they see a numerical code.
FORBES: Tech Startup Uses Cell Phones To Root Out Counterfeit Drugs
Under Mr Simons' scheme, which is being implemented in Nigeria and Ghana, a scratch-off panel on the packaging reveals a code which can be texted to a special number to verify that the drugs are genuine.