nineteen

十九的、十九个

There are nineteen students waiting outside the classroom right now.

现在有十九个学生在教室外面等著。

十九岁的

My cousin is nineteen years old and studies engineering.

我表弟十九岁，读的是工程。

十九

Add nineteen to the total and write down the answer.

把十九加进总数，然后写下答案。

十九岁

She moved to the city at nineteen to find work.

她十九岁时搬到城市去找工作。