嗅觉能发出信号，告诉有危险动物接近，或者告诉人类找到食物源。
Smell could signal the approach of a dangerous animal, or lead to a food source.
也许最重要的一点是必需的提升人类或者动物对医疗的信心。
Perhaps the most important quality required to practice human or animal medicine is confidence.
他说没有任何牛肉部分进入了人类食物或者动物蓄养供应链中。
He said no part of the cow entered the human food or animal feed chain.
他说没有任何牛肉部分进入了人类食物或者动物蓄养供应链中。
He said no part of the cow entered the human food or animal feed chain.
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