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德国科学家对奶牛进行如厕训练
21-09-15 家畜的粪便是温室气体的一大来源，为了减少家畜随地排泄对环境的危害，德国科学家对奶牛进行了如厕训练，结果发现，牲畜比人们想的更聪明。 If you can potty-train a child, you can potty-train a cow. At least, that was the theory a group of researchers in Ger...
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21-09-15 家畜的粪便是温室气体的一大来源，为了减少家畜随地排泄对环境的危害，德国科学家对奶牛进行了如厕训练，结果发现，牲畜比人们想的更聪明。 If you can potty-train a child, you can potty-train a cow. At least, that was the theory a group of researchers in Ger...