The extra cells may form a mass of tissue called a tumor.

额外的细胞可能形成一个所谓的肿瘤组织肿块。

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These extra cells can form a mass of tissue called a growth or tumor.

这些额外的细胞可以形成一个组织团块称为增生或肿瘤。

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If you've got extra cells of one type and need another, why go all the way back to a stem cell?

如果你有一种类型的多余细胞，还需要另外一种类型的细胞，干嘛还要回到干细胞上去呢？

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So, when there is extra glucose you want to put it into the cells that can use it immediately.

当有额外的糖分存在时,能迅速利用糖分的细胞就开始摄取糖分

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The cells of this surrounding sheet have become different in some way and they develop into the placenta and the extra embryonic tissues.

环抱在周围的这一层细胞,已经开始逐渐分化,最终成为胎盘,及额外的胚胎组织

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Where your cells experience those states is through these extra cellular ligands called insulin and glucagon.

细胞所经历的这些状态改变是受,胰岛素和胰高血糖素这些外源配体影响

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Steroids are also given to reduce brain swelling by stopping extra fluid entering brain cells and increasing their volume.

BBC: Heading for trouble

Because only some cells contain the extra X chromosome, females with the mosaic form of triple X syndrome may have less severe symptoms.

CNN: Triple X syndrome

There are also an extra 400 people being held in police cells due to prison overcrowding.

BBC: NEWS | UK | Over 108,000 in detention in UK