A mineralogist at the California Institute of Technology, Rossman says serpentine is only dangerous if you grind it up and inhale the particles.

VOA: standard.2010.07.26

There's a few exceptions, but most things you can really grind on and certainly that was kind of the history of Microsoft in the early days.

有一些例外，但是大多数都是耗时长久,早期微软也是如此。

斯坦福公开课 - 微软CEO-Steve.Ballmer谈科技的未来课程节选

you know, grind that ledge or do that rail or jump those stairs.

噢，滑窗台，走栏杆或者跳楼梯。

滑板的魅力 - SpeakingMax英语口语达人

As voters in the northern half of the island, known as the Turkish Republic of North Cyprus,go to the polls, its leader Mehmet Ali Talat has warned if he is defeated the current United Nations sponsored reunification talks will grind to a halt.

VOA: standard.2010.04.15

There's a way to actually grind down and prepare the flour, so that you promote the enzymes within the plant to breakdown the cyanide precursors.

有一种方法是将它们磨碎，做成粉，这样就可以促进它们本身带有,酶将氰化物的前驱体分解掉。

麻省理工公开课 - 化学原理课程节选

They are simply analytical tools. They're not inherently biased. They can be applied fairly to the text, and they're extraordinarily useful. It's just that some of the earlier practitioners of these methods did have ideological axes to grind, and we need to be aware of that.

所以它们只是分析工具，本身并不带有偏见,它们是十分有用的，完全可以运用于文本,但一些早期实施者并没有将其,融会贯通，我们必须意识到这一点。

耶鲁公开课 - 旧约导论课程节选