And, as weed expert Bill Curran at Penn State University points out, they avoid the use of chemicals. Or the labor of pulling weeds by hand.

就像宾夕法尼亚州立大学的杂草专家指出的，weed whackers割草机避免了化学品的使用，也避免了手工清除杂草的劳动。

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Sandel uses the examples of Bill Gates and Michael Jordan to explain Nozick's theory that redistributive taxation is a form of forced labor.

Sandel使用了比尔盖茨和迈克尔乔丹的例子来解释Nozick的理论：税收的重新分配是强迫劳动的一种形式。

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Bill Wonch, one of the writer's of this article, is an adjunct instructor and software architect for the Nebraska Workforce Development, Department of Labor.

Bill Wonch，本文作者之一，是nebraska州劳工部的兼职讲师和软件架构师。

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And we saw that on Thursday afternoon when they were not able to pass the biggest spending bill of the year, which governs labor, health, education, most of the social programs of the federal government in one bill.

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To the list of honors and acknowledgements we can now add Bill The Boy Wonder, a labor of love written by a fan, for fans.

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He's a former assistant secretary of labor under President Bill Clinton and now a professor of management at the University of Pennsylvania's Wharton School.

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