Do you have an antivirus program?

你有防病毒程序吗？

Can wearing two masks provide more protection against the virus?

戴两个口有更好的防病毒效果呢？

Your computer should have anti-virus and anti-spyware software.

你的电脑应该有防病毒和反间谍软件。

We attach great importance to children's health. We think disease prevention is more important than treatment.

“我们高度重儿童健康，治病更重要在于防病。

It is common sense, of course, to try to prevent infestation rather than merely treating it once it has arisen.

当然，防病胜于治病是常识。

Trump's action showed he might have " crossed a bridge" .

特朗普的举动表明他可" 过了一座桥" （终于承认戴口防病毒）。

You have three layers of skin which act as a barrier against disease, poisons and the sun's harmful rays.

皮肤有三层，它们是防病、防毒、抵御太阳有害光线侵害的一道屏障。

Now, if you're talking about a computer that doesn't have an anti-virus, it's unsecure.

现在，如果您谈论的是一台没有防病毒软件的计算机，那它就是安全的。

And one of the reasons for that is because antivirus companies often don't recognize stalkerware as malicious.

其中一个原因是因为防病毒公司通常会将跟踪软件识别为恶意软件。

These basic defenses kept the program from spreading, but to protect yourself, turn off options like open safe files after downloading in Safari.

而这款基本的防病毒软件只是防止传播病毒，为了你自己的电脑着想，还是用Safari浏览器下载安全文件的好。

As hackers turned up, layers of security, from antivirus programs to firewalls, were added to try to keep them at bay.

随着黑客的出现，从防病毒程序到防火墙的安全层被添加以试图将他们拒之门外。

Prevention, however, is always better than cure, and the second of Mr Laska's devices is designed to stop levees being breached in the first place.

常言说治病如防病，对待堤坝亦然。拉斯卡先生发明的第二种装置就是用于事先防止堤坝出现垮塌。

The Russian authorities are urging people to abide by the anti-pandemic measures but also say if the high numbers persist they might have to put additional measures in place.

俄罗斯政府敦促人们遵守防病毒传染措施，并且表示如果感染数量仍居高下，他们可得采取额外的措施。