chicken tractor
短语词形变化
chicken tractors
复数
chicken tractors
释义与例句
n.
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1.
A movable enclosure in which chickens can scratch the ground for food, allowing them to be pasture-raised (benefiting from grass, insects, sunshine, and breathing space) and offering benefits to crop rotation systems (e.g., insect control, soil manuring).
词源
So called because it serves some functions of a tractor, such as weeding and fertilizing. Attestations from the 1970s exist, according to the metadata connected with snippet views in Google Book Search results.
来源:wiktionary