一个苹果用英语可以说作 "an apple". 苹果这个词来源于古英语 "aeple", 源于日耳曼语 "aepfel"，最终演变成现在的英文单词。

下面是一些英文例句：

I have an apple in my hand.

Apples are rich in vitamins and minerals.

An apple a day keeps the doctor away.

The teacher gave each student an apple.

I like to eat apples with peanut butter.