The invention refers to appetence measurement for animals.
本发明涉及动物的食欲测量.
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When your ability to pay is greater than your appetence, you are rich.
当支付能力大于欲望的时候, 就可以说是富有.
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"an appetite for life"
"the object of life is to satisfy as many appetencies as possible"- Granville Hicks