A newer anti-HIV drug called pyridinone caused HIV to mutate into a form which could not reproduce or infect new cells.一种叫作吡啶酮的新型抗艾滋病药物能促使艾滋病毒变异，使其不能繁殖，也不会再感染新的细胞。...

n.吡啶酮...

pyridinone的音标：...