"They actually show a person's body any foreign object attached anywhere in the body, even if it is internally.

VOA: standard.2009.12.30

The study of immunology is the study of mechanisms that your body uses to protect itself from mainly from foreign pathogens like viruses and bacteria.

免疫学研究身体,采用何种机制来保护自身,免受外源病原体如病毒和细菌的伤害

耶鲁公开课 - 生物医学工程探索课程节选

We're going to talk a lot about antibodies over the next week or so, but antibodies are specialized proteins that, as you know, are designed to bind to antigens or foreign molecules inside the body.

我们将会在接下来的几周,讲许多关于抗体的内容,抗体是一种特殊蛋白质,众所周知,抗体用于结合身体内的抗原和外源分子

耶鲁公开课 - 生物医学工程探索课程节选

Israel's Foreign Minister Avigdor Lieberman spoke on the telephone with United Nations Secretary General Ban Ki-moon and accused the world body of "prejudice" and "hypocrisy."

VOA: standard.2009.10.23