sward
sward[swɔːd]noun- an expanse of short grass
(一片)草皮
■(Farming)the upper layer of soil, especially when covered with grass
(农)草皮
派生swardedadjective语源- Old English sweard 'skin'. The sense 'upper layer of soil' developed in late Middle English (at first in phrases such as sward of the earth)
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