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。
They threatened to expel him from his adoptive country.他们威胁将他驱逐出他的移居国。It was the dream of Isabella's life to expel them for ever.把他们永远从这片土地上赶出去是伊莎贝拉一生的愿望.They were told at first that they should simply expel the ref...
Some of them make no bones about their political views.他们中的一些人坦率地表达了自己的政治观点。Her sallow skin was drawn tightly across the bones of her face.她那蜡黄的皮肤紧紧地包着脸上的骨头。You can hear the saw as it cuts through the bones.你能听到锯子锯进骨头里的声...