| 例句 |
All donated blood is screened for HIV.所献血液一律要经过人体免疫缺陷病毒的筛查。People with common variable immunodeficiency often suffer from infections.患有常见变异型免疫缺陷病的病人经常会受到感染。He intends to talk to young people about the dangers of HIV and AIDS.他打算和青年人谈谈人类免疫缺陷病毒和艾滋病的危害。 |