1. Two important manifestations of antigen-antibody immunity are lysis. 抗原——抗体免疫的两个重要表现是裂解。
2. There's a lag phase, and there's a slow rise to an intermediate level of antibody concentration. 有一个迟滞期，抗体浓度缓慢上升至中间水平。
3. There's no lag period, and notice that antibody levels start rising right away after the second exposure. 没有迟滞期，注意抗体水平在第二次接触后立即开始上升。
4. In isolated human cells, this antibody proved to be extraordinarily effective at thwarting the rhinovirus. 在分离的人体细胞中，这种抗体被证明对遏制鼻病毒非常有效。
5. Those who did well on the memory test had an increase in levels of immunoglobulin A, an antibody that's the body's first line of defense against germs. 那些在记忆测试中表现良好的人，其体内的免疫球蛋白 A 水平会升高。免疫球蛋白 A 是一种抗体，是人体抵御细菌的第一道防线。
