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

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