He took a mouthful of neat whisky, and coughed.是什么意思？

He took a mouthful of neat whisky, and coughed.

他喝了一口纯威士忌，咳嗽了起来。

he

pron. 他，它，一个人；n. 雄性动物；

例句
Logic had prevailed and he had abandoned the idea.
最终理智占了上风，他打消了那个念头。

took

v. 拿( take的过去式 )，接受，学习，取得；

例句
The interview took place on a Friday afternoon...
采访是在一个星期五的下午进行的。

mouthful

n. 一口，满口，<俚>适当[不适当]的批评[暗示]；

例句
She swallowed a mouthful of the hot strong brew, and wiped her eyes.
她喝了一口热浓茶，又擦了擦眼睛。

of

prep. 关于，属于…的，由…制成；aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气]；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

neat

adj. 整洁的，干净的，灵巧的，匀整的，未掺水的；

例句
The sundress has a neat back zip fastening.
这件背心裙背部有一个巧妙的拉链。

whisky

n. 威士忌酒；

例句
I could smell the whisky on his breath...
我能闻到他呼出的威士忌的味道。

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。

coughed

v. 咳嗽( cough的过去式和过去分词 )，（从喉咙或肺中）咳出，（突然）发出刺耳的噪音；

例句
When I suggested a drink, she coughed disapprovingly.
我提议喝一杯时, 她咳了一下表示反对.