The sheep, horses, goats and pigs brought by Europeans, however, have hard hooves, which compress the thin soil and cause erosion.
然而,欧洲人带来的绵羊、马、山羊和猪却有着坚硬的蹄子,这压紧了稀薄的土壤并导致了水土流失。
A strong liquid adhesive obtained by boiling collagenous animal parts such as bones, hides, and hooves into hard gelatin and then adding water.
胶水:一种强液体粘剂,通过煮胶原质的动物部分如骨胳,皮革和蹄,把它们煮成硬动物胶然后加水而制的。
A strong liquid adhesive obtained by boiling collagenous animal parts such as bones, hides, and hooves into hard gelatin and then adding water.
胶水:一种强液体粘剂,通过煮胶原质的动物部分如骨胳,皮革和蹄,把它们煮成硬动物胶然后加水而制的。
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