First of all, smiling is contagious.

首先，微笑。

Among turtles, the tumors are contagious.

这种肿瘤在海龟中。

They're having fun, and as the audiences' exuberant reactions indicate, the fun is contagious.

他们很开心，正如观众们热情洋溢反应表明那样，乐。

I think you have chicken pox! You are contagious! Get away! Don't breathe on me!

我觉得你可能长水痘了！！走开！不要对着我呼吸！

Yawning is actually a difficult case when it comes to these contagious behaviours.

就这些行为而言，打哈欠实际上一个复杂例子。

It turns out that math anxiety is contagious.

事实证明， 数学焦虑。

My greatest fear is that I am going to give it to my parents.

我最担心，我可能给我父母。

Well, maybe the prosperity in this place is contagious.

或许这个地方成功。

Like mental states, ideas are contagious; much more so when we expose ourselves to people that share the same worldview.

就像精神状态一样，想法；当我们接触拥有相同世界观人时，情况就更如此。

Maybe you've heard that depression is contagious, and you're afraid of catching it.

也许你听说过抑郁症，你很害怕感它。

I will hear not those who weep and complain, for their disease is contagious.

我不听到那些哭泣和抱怨人，因为他们疾病。

" The faculty of deduction is certainly contagious, Watson, " he answered.

“演绎能力肯定， 华生，” 他回答道。

You have to take extra precaution now, because this is, I can take this home to my family.

必须要做好防范，因为给我家人。

Well, watch out. Cooties are contagious.

那你当心点 脑残体。

And much like yawning, being itchy is thought to be contagious, as some of you may be noticing right about now.

就像打哈欠一样，发痒被认为，你们中一些人现在可能已经注意到了。

This is another term for measles, a contagious virus that's characterized by a skin rash.

Measles麻疹另一种说法，这一种引发皮疹性病毒。

He is crying, and the other Marines are watching, and I know that fear is contagious.

他在哭，其他海军陆战队员在看着，我知道恐惧。

I oughtn't to have come to a man who knows me — your cursed incredulity is infectious.

我不应该来找一个认识我人——你该死怀疑。

Even if I don't fully understand what's happening, the excitement is contagious, and the wine is delightful.

即使我不完全了解正在发生事情，但兴奋， 而且美酒令人愉悦。

The Hogwarts house-elves had now started edging away from Dobby, as though he was carrying something contagious.

霍格沃茨家养小精灵们现在已经开始远离多比，仿佛他身上带着什么东西。