loam
[loʊm]
n.
（尤指适合植物生长的）壤土，沃土;
肥土（含有黏土、沙和有机物质的土地）;
亚黏土;
vt.
用壤土填;
例句:
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The soil consists of a chalk subsoil, topped by a covering of rubble that is made up of sand, lignite, marl, loam and clay.
来自WSJ
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Plant the seeds in good loam.
把种子种在好的壤土里.
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One occupies relatively dry sandy loam soils.
一个则占据较干旱的沙壤土.
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The soil was brown soil in type and light loam in texture.
供试土类为褐土,质地为轻壤.
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Cliffs, composed...of alternating strata of blue clay, gravel, loam, and fine sand.
来自C. Lyell
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Grabbing a hand trowel, he turns over the pebbly loam looking for worms for his plot.
来自VOA