柯林斯词典loam /ləʊm/ 1. N-UNCOUNT Loam is soil that is good for growing crops and plants in because it contains a lot of decayed vegetable matter and does not contain too much sand or clay. 沃土 返回 loam剑桥词典high-quality earth that is a mixture of sand , clay , and decaying plant material 沃土，肥土 返回 loam