第3集：婴儿热：杰森冒着职业生涯的危险回到杰米的摔跤生涯中，给了道格。

3: Baby Fever: Jason risks his career by returning to wrestling; Jamie presses Doug about having children.

youdao

婴儿，还有其它哺乳动物都靠这种脂肪组织来产热。

Other mammals and human infants rely on brown fat to keep warm.

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这么大热的天，你得给婴儿做适当的防护。

You have to protect the young baby properly from such excessive heat.

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So one very simple study by Spelke and Baillargeon: Have babies shown a block with a bar going back and forth like that.

斯皮克和巴亚热昂做了一个简单的研究,向婴儿呈现一个木块,木块中间有一个能够来回移动的木杆,就像这个样子

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