pupils是什么意思？

pupils是一个英文单词，它的意思是“学生”或者“瞳孔”。下面将会对这两个意思进行详细的解释，并提供相关的用法和例句。

1. “学生”的意思

作为名词，“学生”指的是在学校或其他教育接受教育的人。它可以用来指小学、中学、大学以及其他各种类型的教育阶段的学生。：

- The pupils in this school are very hardworking. (这所学校的学生非常勤奋。)

- The teacher gave the pupils a lot of homework. (老师给了学生们很多作业。)

此外，pupils也可以用来指某个特定年级或班级的学生群体，：

- The pupils in Grade 5 will have a field trip next week. (五年级的学生下周将进行一次郊游。)

- The teacher noticed that some pupils were struggling with the new material. (老师注意到一些同学在新材料上有困难。)

2. “瞳孔”的意思

作为名词，“瞳孔”指眼睛中黑色部分，它是光线进入眼睛深处的开关，大小会随着光线强弱而变化。：

- Her pupils dilated when she saw the bright light. (她看到强光时瞳孔放大了。)

- The doctor shone a light into my pupils to check my eyes. (医生用灯光照射我的瞳孔来检查我的眼睛。)

此外，pupils也可以用来指动物的眼睛中的黑色部分，：

- The cat's pupils narrowed as it stared at its prey. (猫盯着它的猎物时，瞳孔变窄了。)

- The dog's pupils widened when it saw its owner. (当它看到主人时，狗的瞳孔放大了。)

pupils作为“学生”和“瞳孔”的意思，在句子中可以根据上下文来判断具体指代哪个意思。下面是一些例句：

- The teacher noticed that some pupils were struggling with the new material. (这里的pupils指的是学生。)

- The doctor shone a light into my pupils to check my eyes. (这里的pupils指的是瞳孔。)

例句参考1：

1. She has been a pupil in this school for 5 years.

2. The teacher asked the pupils to line up in two rows.

3. The pupils were excited about their upcoming field trip.

4. The doctor noticed that the patient's pupils were unequal in size.

5. The cat's pupils dilated as it saw a mouse running across the floor.

总结：

pupils有两个意思，一个是“学生”，一个是“瞳孔”。作为“学生”，它可以指任何接受教育的人，也可以指某个特定年级或班级的学生群体。作为“瞳孔”，它指眼睛中的黑色部分，光线进入眼睛深处的开关。在句子中，根据上下文可以判断具体指代哪个意思。希望本文能帮助你更好地理解和使用这个词汇。