病毒只有一个蛋白质外壳和一些DNA和RNA这样的遗传物质。
Viruses only contain a shell of protein and some DNA and RNA genetic makeup materials.
有四种类型的病毒：外壳、入侵、操作系统和源码。
There are four main types of viruses: shell, intrusive, operating system, and source code.
有四种类型的病毒程序：外壳型、入侵型、搡作系统型和源码型。
There are four main types of viruses: shell, intrusive, operating system and source code.
进入细胞后，病毒颗粒就打开它的外壳。
病毒的外壳被称为这个病毒的信封。
The outer shell of the virus is known as the viral envelope.
这个外壳阻碍科学家观察病毒内部的遗传物质。
The shell prevented scientists from examining the genetic material inside the virus.
这个外壳阻碍科学家观察病毒内部的遗传物质。
The shell prevented scientists from examining the genetic material inside the virus.
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