A massive oak claims its ground for 200 years or more, outcompeting all other would-be canopy trees by casting a dense shade and drawing up any free water in the soil.

200年或更久的时间里，一棵巨大的橡树占据了它的土地，投下浓密的树荫，吸收土壤中所有自由水分，打败了所有其他可能成为树冠的树木。

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These shrubs must have an acid, lime-free soil.

这些灌木必须要有酸性、无石灰的土壤。

《柯林斯英汉双解大词典》

It takes several years to convert land from conventional production to organic production, in part because of the need to free the soil of fertilisers and pesticides.

从传统产品转变成有机产品用了几年时间，部分原因可能是使土地从肥料和杀虫剂的中缓一缓。

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They called it the Free Soil Party, because they believed in free land for free settlers.

VOA: special.2009.03.12

In Democracy in America there's that famous passage, or passages, when Tocqueville crosses the Ohio River, from Ohio into Kentucky, from free soil into slave soil, free state into a slave state.

在托克维尔跨越俄亥俄河,从俄亥俄进入到肯塔基州,从自由之所走向奴役之地的那段游历中,为《美国民主》贡献了数段名言

耶鲁公开课 - 美国内战与重建课程节选

The House of Representatives was controlled by members of the Free Soil Party, which opposed slavery.

VOA: special.2009.03.12

Their modular hydroponic system -- where plants sit in a soil-free set up with nutrients delivered through irrigation channels -- can be retrofitted to just about any wall.

CNN: Green walls create new urban jungles

If he did, he might explain that the Republican party was formed around an always-uneasy alliance between Whig prosperity-mongers and Free Soil puritans.

FORBES: Preachers, Plutocrats, and Grover Norquist: But Where's The GOP Soul?

The rich, tree-free prairie soil was great for farming, but lumber had to be imported for houses and barns.

FORBES: Wisconsin Republicans Attack a Brilliant UW Historian