这项服务的描述中也提及了通话功能，即该款触摸屏会”带给您更高层次的移动通信使用体验“。

The device's description also hints at phone capabilities when it says the tablet "takes your mobile experience to the next level".

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帕金森发生时，脑细胞-神经细胞-即释放化学信使称为多巴胺死。

Parkinson's occurs when the brain cells - neurons - that release the messenger chemical known as dopamine die.

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That signal is carried here, for example, by the concentration of second messengers - the concentration of something else.

这里这个信号由,第二信使的浓度,即另一种物质的浓度来传递

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