Immune System
The body defends itself against foreign proteins and infectious microorganisms by means of a complex dual system that depends on recognizing a portion of the surface pattern of the invader. The two parts of the system are termed cellular immunity, in which lymphocytes are the effective agent, and humoral immunity, based on the action of antibody molecules.
- immune system [iˈmju:n - ˈsistəm] n.免疫系统
- defend [diˈfend] v. 防卫
- foreign [ˈfɔrin] adj. 异质的，外来的
- protein [ˈprəuti:n] n.蛋白质
- infectious [inˈfekʃəs] adj. 有传染性的
- microorganism [ˌmaikrəuˈɔ:ɡənizəm] n.微生物
- dual system [ˈdju:əl - ˈsistəm] n.双重系统
- recognize [ˈrekəɡnaiz] v.认出
- invader [inˈveidə] n. 侵入物
- lymphocyte [ˈlimfəusait] n. 淋巴细胞
- agent [ˈeidʒənt] n. 作用物
- cellular immunity [ˈseljulə - iˈmju:nəti] n.细胞免疫
- humoral immunity [ˈhju:mərəl - iˈmju:nəti] n.体液免疫
- antibody molecule [ˈæntiˌbɔdi - ˈmɔlikju:l] n. 抗体分子
