Some savannas occur on wet, waterlogged soils; others on dry, sandy, well-drained soils.

一些稀树大草原生长在潮湿、涝渍的土壤上；其它则在干燥、多沙、排水良好的土壤上。

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This is an Oriental hybrid and so is slightly more demanding to grow, needing well-drained, but rich, soil to grow well.

这是一品东方杂交品种，所以生长条件要求有点高，排水良好、肥沃的土壤里才长得好。

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Nitrogen isotope compositions of groundwater reflect characteristics of contamination sources in the environment of well-drained soils and oxygenated ground waters.

在土壤排水良好、氧化的地下水环境中，地下水的氮同位素组成反映了源的特征。

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But it can be drained as well--maybe some of the new hedge fund and private equity fortunes won't look so round a year from now.

FORBES: Ebb and Flow

Her mother's family had been relatively well-off in Tokyo before the war, but the evacuation drained the family's wealth.

CNN: Lesson in forgiveness crosses generations