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

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 ?

He tackled a masked intruder at his home.

他在家里抓住了一个私自闯入的蒙面人.

However, an conditioned masked target can elicit an emotional response from subjects without being consciously perceived.

然而, 一个设计得令人嫌恶的目标,则能够引起受试者的情绪反应,而受试者并未有意识地感知到这种反应.

These pigs had acquired lungworm infestations presumably containing masked influenza virus under natural conditions.

这些猪在自然条件下已受到含有隐蔽流感病毒的肺丝虫寄生.

The sight of the masked gunman made my blood freeze.

我一看见那个持枪的蒙面人就吓得浑身冰凉.