基因作祟 欧美人天生爱吃汉堡
<p><span word="Our">Our</span> <span word="frozen">frozen</span> <span word="ancestors">ancestors</span> <span word="of">of</span> <span word="the">the</span> <span word="Ice">Ice</span> <span word="Age">Age</span> <span word="needed">needed</span> <span word="plenty">plenty</span> <span word="of">of</span> <span word="fat">fat</span> <span word="in">in</span> <span word="their">their</span> <span word="diets">diets</span> <span word="to">to</span> <span word="keep">keep</span> <span word="warm">warm</span> – <span word="and">and</span> <span word="it">it</span> <span word="seems">seems</span> <span word="we">we</span> <span word="might">might</span> <span word="still">still</span> <span word="be">be</span> <span word="carrying">carrying</span> <span word="their">their</span> <span word="genetic">genetic</span> <span word="torch">torch</span>. 在遥远而又寒冷的冰河时期，我们的祖先需要从食物中获取大量的脂肪，以用来保持温暖，不过生活在现代社会的人们似乎依旧继承者祖先们的这一遗传基因。</p>
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