拉奥特说：“另一种可能是病毒并不会直接影响人类的细胞，而失去蛋白质外壳的病毒核糖核酸可能会通过一种类似于核糖核酸介素的组件选择细胞的功能。
One possibility, Raoult says, is that the virus does not infect human cells directly.
自定义完成系统的可用选项和可能性实在太多了，无法在此进行一一介绍。
The available options and possibilities with the custom completion system are too numerous and extensive to cover here.
多个医学中心的监测数据表明艾滋病毒感染婴儿罹患播散性卡介菌病的风险明显高于之前的估计，尽管目前的数据可能还是低估的。
Multicentre surveillance data showed that the risk of disseminated BCG disease in HIV-infected infants is considerably higher than previously estimated, although likely to be under-estimated.
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