例句：
1、They are going to play "Twelfth Night" next week.
下周，他們將演出“第十二夜”。
2、At the twelfth stroke, we welcomed in the New Year.
時鐘正在敲十二點時，我們迎來了新年。
3、Ten days, from the third to the twelfth inclusive
十天，從三日到十二日，首尾兩天也包括在內
4、Every twelfth baby is born weighing too little.
每十二個中有一個嬰兒出生體重太輕。