| 1. | In some ways the immune system may be compared to a totalitarian state .
在某些方面，可以把免疫系统比作一个集权国家。 |
| 2. | In animals, this consists of 2 principal componentsthymic and bone marrow system .
动物的免疫系统由两个主要部分组成，即胸腺和骨髓系统。 |
| 3. | Interferon strengthens the body's response against disease by making the immune system more effective .
干扰素应通过增强免疫系统的效用来提高机体的抗病能力。 |
| 4. | In some cases, interferon enhances the immune system's effectiveness; in others, interferon suppresses it .
有时干扰素会提高免疫系统的功能，有时它又抑制着免疫系统。 |
| 5. | Antibodies are produced by the immune system when something foreign, such as viruses or chemicals, invades the body .
抗体是免疫系统在异物（例如病毒或一些化学物质）侵犯机体时所产生的。 |
| 6. | Scientists are continuing to discover new ranks of soldiers in the immune system army and to observe greater complexity in its maneuvers .
科学家正不断地在免疫系统的队伍中发现新型的战士，并且不断地发现免疫系统的行动有更为复杂的情况。 |
| 7. | Prevents the immune system from attacking itself ,
用来防止免疫系统自己攻击自己 |
| 8. | Prevents the immune system from attacking itself ,
用来防止免疫系统自己攻击自己 |
| 9. | One of these is the body ' s own immune system
其中之一就是身体的自有免疫系统。 |
| 10. | These factors can also affect the immune system
这些因素也可能影响免疫系统。 |
