pupil的复数形式为pupils，其意思是学生、小学生等，例如“How many pupils does the school have”的意思是这所小学有多少学生。其次pupil作名词，还有瞳孔、眸子等含义，例如“Her pupils were dilated”的意思是她的瞳孔扩大了。

相关例句：1、The school began in 1920,with only ten pupils.

这所学校创建于1920年，当时只有十名学生。

2、Several pupils were designated as having moderate or severe learning difficulties.

几名学生被认定有一定或严重学习困难。

3、A number of pupils have been truanting regularly.

不少小学生一直经常旷课。

4、I finally see her pupils of eyes.

我终于看到她的眸子。

5、At night,the pupils dilate to allow in more light.

到了晚上，瞳孔就会扩大以接收更多光线。