The virus cell that sneezed into your lungs is sneaky. Pretending to be a friend, it attaches to a projection on the cell membrane and the cell brings it through the cell membrane and inside. When the virus gets through, the cell recognizes its mistake – an enemy is inside. Special enzymes arrive at the scene and chop the virus to pieces. They then send one of the pieces back through the cell membrane where the cell displaces it to warn neighboring cells about the invaders. A nearby cell sees the warning and immediately goes into action. It needs to make antibodies, proteins that will attack and kill the invading virus. This process starts in the nucleus.
被打喷嚏进你肺里的病毒体是很狡猾的。它假装是一个朋友，连到细胞膜上的一个突出部分，然后细胞让他穿过细胞膜进来。当病毒在里面了以后，细胞认识到它犯的错误——敌人到里面来了。特殊的酶赶到现场，把病毒切成数块。之后他们把其中的一块放在细胞膜外面，这样细胞就可以警示它旁边的细胞有入侵者。旁边一个细胞看到了这个警示立刻开始行动。它需要制造抗体，一种会攻击并消灭入侵病毒的蛋白质。整个制作流程从细胞核内开始。
词汇讲解1：
sneaky 狡猾的
pretending to be 假装是
attach to 附着在……上
chop the virus to pieces
把病毒切成碎片
neighboring 临近的；周围的
antibody 抗体
The nucleus contains our DNA, the blueprint that tells our cells how to make everything our bodies need to function. A certain section of our DNA contains instructions that tell us how to make antibodies. Enzymes in the nucleus find the right section of the DNA, and then create a copy of these instructions, called messenger RNA. The messenger RNA leaves the nucleus to carry out its orders. The messenger RNA travels to a ribosome. There can be as many as ten million ribosome in a human cell, all started along a ribbon-like structure called the endoplasmic reticulum.
细胞核装有我们的DNA，DNA是告诉我们细胞怎么制造我们身体功能所需的一切东西的蓝图。我们DNA中由一部分含有指示来告诉我们的细胞怎么制造抗体。细胞核中的酶找到正确的DNA部分，再复制一份这些指示，叫做信使RNA。信使RNA离开细胞核去执行命令。信使RNA抵达核糖体，都沿着带状的内质网分布。
词汇讲解2：
a certain section of
某一（特定）区域
a ribbon-like structure
带状结构
