Camels are often the only animals that produce milk during a drought.

骆驼是唯一在干旱时产奶的动物。

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He also says more efforts need to be put into raising camels. Camels are often the only animals that produce milk during a drought.

他还表示，在养殖骆驼方面需要加大努力。骆驼是干旱时唯一产奶的动物。

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Mice in this case are the first line of experimentation — the scientists hope to then expand the research out into other animals that can produce milk in bulk, like goats and cows.

其实，老鼠只是这个实验的第一个阶段，这些科学家希望以后能将这项研究扩展到其他能大量产奶的动物上，比如山羊和奶牛。

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