Poured concrete retains walls work well in the heavy or unstable soil and steep slopes, making other walls inadvisable.

在重质或不稳定的土壤和陡峭的斜坡上，浇注混凝土挡土墙效果良好，让其他墙成为不明智的选择。

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Asked to deploy toilets in Internally Displaced Persons (IDP) camps, Kramer worried that SOIL lacked experience in emergency work, yet agreed to try.

克雷默接到在国内流离失所者(IDP)营地部署厕所的邀请，她担心SOIL缺乏急救工作的经验，但还是同意一试。

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Early Tuesday morning their work paid off when McDonald spotted the curved timber of the ship poking through the soil and mud.

星期二的凌晨，当麦克唐纳通过土壤和泥浆发现了船浆的弯曲木材的时候，他们的工作才算取得了回报。

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And Amber Banks says they want the same people who get food donations to learn how to work the soil.

VOA: special.2010.07.06

The way these things work, when you are engaged in agriculture, it's natural to go first to that soil, to that patch of land which is known to be likely to produce the best land, the most fertile, the best product, the most fertile land there is.

这一方式是这样运作的,当你从事农业,你自然而然的会首先关注土壤因素,去找出已知土地中最为肥沃的那一块,土地越肥沃,产量越高,就越追求更为肥沃的土地

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She says farmers should not endlessly work the same soil without putting back some organic matter.

VOA: special.2010.11.09

Dr Colin McClung, ex-IRI, was co-recipient of the World Food prize in 2006 for this soil fertility work.

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Having spent long days on his uncle's farm, he knows what it's like to work the soil for a living.

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