直到罗马帝国瓦解阶段，阿尔卑斯山地带才缓慢而明显地出现中世纪农业技术。
A distinct medieval agricultural practice emerged only very slowly in trans-alpine Europe in the centuries after the collapse of the Roman Empire.
直到罗马帝国瓦解阶段，阿尔卑斯山地带才缓慢而明显地出现中世纪农业技术。
A distinct medieval agricultural practice emerged only very slowly in trans-alpine Europe in the centuries after the collapse of the Roman Empire.
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