num.十九;十九个;第十九;
n.十九岁;十九点钟;
例句:
At the age of nineteen he began his duty.
他19岁时开始服兵役.
They talk nineteen to the dozen about all they have do in that time.
他们喋喋不休地谈著那段时间里他们所做过的一切.
He was talking nineteen to the dozen.
他喋喋不休地说个没完.