The technique has been to mutate the genes by irradiation or chemicals.该技术是通过放射线照射或者使用化学方法使基因变异。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...
The technique has been to mutate the genes by irradiation or chemicals.该技术是通过放射线照射或者使用化学方法使基因变异。the ability of the virus to mutate into new forms病毒变异成新菌株的能力A newer anti-HIV drug called pyridinone caused HIV to mutate int...
Any trawl through the band's interviews will reveal statements that are challenging and incisive.随便选取一段对该乐队的访谈都能发现令人深思、犀利精辟的言论.In trawl fishing, huge nets are slowly pulled below the water to collect fish.拖网捕鱼时, 巨大的...
He then climbed down and stood, downcast eyes, to receive Roger Malvin's last words.然后他爬了下来,站着, 低垂着目光, 接受罗杰?马尔文的临终嘱托.He looked so downcast I took pity on him.他那十分沮丧的样子令我产生了怜悯。She was silent, her eyes downcast.她一言不发，...