但也有可能在感染时，就感染了一个很聪明的病毒，也就是已经有抗药倾向的病毒。
But it's also possible to become infected with a smarter HIV right from the start, from someone who had already exhausted some medicine's potential.
它们都是烈性噬菌体，也就是说这种病毒颗粒一旦侵袭细胞，细胞就必然死亡。
Both these are virulent phages, meaning that whenever a phage particle attacks a bacterial cell that cell is inevitably killed.
它们都是烈性噬菌体，也就是说这种病毒颗粒一旦侵袭细胞，细胞就必然死亡。
Both these are virulent phages, meaning that whenever a phage particle attacks a bacterial cell that cell is inevitably killed.
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