激动和歇斯底里之间就一线之隔。用英语怎么说？

激动和歇斯底里之间就一线之隔。

There's a very thin dividing line between joviality and hysteria.

very

adj. 很，非常，恰好是，正是，十足的，特有的；adv. 很，非常，充分，完全；

例句
Most people have very little difficulty in seeing why a Van Gogh is a work of genius.
多数人不难理解为什么凡·高的作品是天才之作。

thin

adj. 薄的，瘦的，稀少的，细的；vt. 使瘦，使淡，使稀疏；vi. 变薄，变瘦，变淡；adv. 稀疏地，微弱地；

例句
'But where could they have gone?' he demanded. 'They can't just vanish into thin air!'...
“但是他们可能去哪里呢？”他追问道，“他们不可能就神秘消失了!”

dividing

adj. 区分的，分划的；v. 分( divide的现在分词 )，划分，分离，（使）产生分歧；

例句
He tried dividing it into two bundles, tying them to his walking stick, and slinging the whole affair across his back.
他试着将它分成两包绑在他的拐棍上，然后把所有东西都挂在后背上。

line

n. 线条，排，行列，界线；vt. 排队，用线标出，沿…排列成行，给…安衬

例句
Every time I fluffed a line Lenny got me out of trouble with a brilliant ad-lib.
每次我台词出错时，伦尼都通过机智的临场发挥帮我解围。

between

prep. 在…之间，私下，暗中，在…中任择其一，来往于…之间；adv. 当中，中间；

例句
How big is the abyss between what you think you are and what you actually are?
你对自己的认识和真实的你之间差别到底有多大？

joviality

n. 快活；

例句
We had gone from good humor to bellicosity back to joviality in five hours.
在五个小时中,双方一会儿从谈笑风生变成剑拔弩张,一会儿又恢复谈笑风生.

and

conj. 和，与，而且，于是，然后，因此；

例句
I spend a lot on expensive jewelry and clothing...
我花很多钱购买昂贵的首饰和衣服。

hysteria

n. [医]癔病，（特指女人的）歇斯底里，病态兴奋，脏躁；

例句
All the lights went off, and mass hysteria broke out.
所有的灯都熄灭了，大家都变得歇斯底里起来。