| 1. | Human viruses invade a living cell and turn it into a factory for manufacturing viruses
人体病毒入侵活的细胞后，就把它转变成制造病毒的工厂。 |
| 2. | Now experts say they have direct evidence to confirm that the human virus came from chimps
现在专家认为他们有直接的证据确定人类的病毒来自于黑猩猩。 |
| 3. | Now experts say they have direct evidence to confirm that the human virus came from chimps
专家们称，他们现在有了直接的证据可以证实：人类的这种病毒来自猩猩。 |
| 4. | " they may not do it and maybe there are too many changes . the virus may not able to be a human virus
或许不会变异，又或许会有很多的变异。这种病毒不一定会成为感染人类的病毒。 |
| 5. | One way for an animal virus to become able to pass easily from person to person is to combine with a human virus . ?
能使动物上病毒变得更容易在人身上传播的一种方法是同人类上的病毒加以杂交。 |
| 6. | Doctor hahn says these tests showed which ones had the kind of s . i . v . that led to what is now the most common form of the human virus
哈恩博士说，这些试验显示带有导致现在的最普遍的形式的人类病毒的类人猿免疫缺陷病毒的黑猩猩。 |
| 7. | So the human virus hunters learn to look for pieces of code that are unique to the functioning of a virus - telltale commands that manipulate the computer ' s operations in unusual ways , such as copying themselves into the middle of existing programs
因此，反毒专家要学会以非正常方式寻找操纵计算机运行的显示病毒存在的命令发生作用的特殊编码，如将自身复制并插人到已有的文件中去。 |
| 8. | Avian flu viruses have demonstrated an ability to evolve to easily infect humans by exchanging genes with human viruses that subsequently permit them to recognise human receptor molecules and gain easy access to cells , typically in the human respiratory system
禽流感病毒可通过与人类基因交换进化，进而能够识别人类细胞受体，获得进入细胞通道，尤其是人类呼吸通道，最终呈现易感染人的能力。 |
| 9. | The highest rate of mutation is seen in the part of the virus genome coding for the spike protein , the component of the virus which enables human cell entry . these data suggest that during the early part of the epidemic , the sars - coronavirus was under significant pressure to change in order to become an efficient human virus
这证明来自动物的病毒在感染人类的初期，病毒受到强大的选择压力，而须迅速变异，使病毒得以在人类身上适应和生存，令人类受到感染和传播病毒。 |
