In some viruses the nucleocapsid is surrounded by an envelope.

Man is host to a variety of pathogenic bacteria , protozoa, and viruses.

人是各种致疾的细菌 、 原生动物以及病毒的宿主.

Moreover, aggregation influences the outcome of chemical disinfection of viruses.

此外, 聚集作用还会影响化学消毒的效果.

Hemagglutination of some viruses has a particular PH requirement.

某些病毒的血凝反应需要一定的PH值.

Contamination with viruses occurs in experimental green houses and in the open.

在实验温室和室外都能发生病毒的污染.

Geminiviruses are the only other group of plant DNA viruses known.

双联病毒是已知的唯一另一组植物DNA病毒.

These viruses affect children and are highly infectious.

这些病毒会侵袭儿童，而且具有很强的传染性。

They think of viruses that infect an organization from the outside. They envision hackers breaking into their information vaults.

他们考虑来自外部的感染公司的病毒, 他们设想黑客侵入到信息宝库中.

Even the most security-conscious computer user is under constant threat from computer viruses.

即使是有强烈安全意识的计算机用户也时刻处于计算机病毒入侵的威胁下。

All bacteria are larger than viruses.

所有细菌都比病毒大.

This is a new kind of viruses in the computer.

这是一种新的电脑病毒.

Viruses tend to be good at surviving when a computer system crashes.

计算机病毒在系统崩溃后往往依然存在。

Masked robbers broke in and made off with $8,000.

蒙面抢匪破门而入，偷走了8,000美元。

A thick grey cloud masked the sun.

一片厚厚的乌云遮住了太阳。

They were taken captive by masked gunmen.

他们被蒙面的持枪歹徒劫持了。

What do you say to have a masked ball?

你觉得开个化装舞会 怎么样 ?

They were held captive by masked gunmen.

他们被蒙面的持枪歹徒劫持了.

It was a young masked man standing behind a pillar.

那是一位站在石柱后面、戴着面具的年轻男子.

All the robbers were masked.

所有的强盗都戴着面具.

A smile masked his disappointment.

微笑遮掩了他的失望.

Do you know the identity of the Evil Masked Figure behind it all?

你们知道邪恶面具人的真实身份 吗 ?