All cells carry the same complete genome, but different genes get turned on, for example, in a liver cell compared with a nerve cell.
所有的细胞都携带着相同且完整的基因组信息，但细胞却千差万别，比如肝细胞和神经细胞。
2
But then we'll start spending some consistent time together, and just when I get up the nerve to have a "talk" about where the relationship is going, he has to leave town again.
但是接着我们会花一些固定的时间在一起，然后正当我鼓起勇气谈谈我们恋爱关系的进展时，他有要出远门了。
3
But they do not know which nerve and is the north wind blows to get an electric shock, the whole body is say a lazy.