He finds any kind of study a real grind.

他发现任何一种学习都是名副其实的苦差使。

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This paper introduces a kind of grind and rub no dirt flour_produced machine's architecture design work principle and use condition.

该文介绍了一种碾搓式无粉尘制粉机的结构设计、工作原理、应用条件。

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Grinding gear with the toroidal involute interior thread worm grind wheel is a new kind of process in hard surface gear finish machining.

渐开面包络环面内螺纹蜗杆砂轮磨齿，是一种硬齿面齿轮精加工的新型工艺。

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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

"It was getting to be kind of a grind, " he says.

FORBES: Magazine Article

Be sure to assemble it out of the right metaphors, the kind that call forth accepted truths and grind them against contradictory beliefs.

FORBES: Revitalizing The Art Of Political Persuasion