nine /nain/ num. 九；九点钟；九岁：nine (times) out of ten 十有八九 It is nine.九点钟了。The boy is nine.这男孩九岁了。nine times out of ten十有八九；大抵；几乎总是：Nine times out of ten our opponents will beat us.We just hope this is the one in ten.十有八九我们都会被对手打败，只希望这次是例外。nine to five 早九晚五的办公时间：She’d had a typical nine-to-five job in the civil service before she worked in the theatre.在去剧院工作之前，她做的是典型的朝九晚五的行政机关工作。
nineteen /ˈnainˈti:n, ˌnainˈti:n/ num. 十九；十九点钟；十九岁： There are nineteen boys in the classroom. 教室里有十九个男生。She married at nineteen.她19岁结的婚。
nineteenth /ˈnainˈti:nθ, ˌnainˈti:nθ/ num.第十九；十九分之一：At the end of the first round, he was (lying) nineteenth.第一轮结束后他排名第19位。Cycling enjoyed a vogue at the end of the nineteenth century. 19 世纪末骑自行车曾风行一时。
