"每一个" 的英文说法是 "each"。这个词来源于古英语中的 "ġehāl"，意思是 "同一个人或物的一部分"。例句：

Each person in the room was asked to introduce themselves.

Please take one candy from the jar, but make sure you don't take more than one, because each person is only allowed to have one.

I'm going to write a letter to each of my friends to thank them for their birthday gifts.