意思不同：

penta：pref. 表示“五个

five：num.五，复数： fives

例句：

Way to go! High five!

好样的！祝贺！

Five people died in a house fire last night.

有五人死于昨夜的住宅火灾。

The next scene takes the story forward five years.

下一个场面是描述故事中五年后的情况。

Students will normally take four or five AS subjects.

学生通常要选四门或五门高级证书辅助考试学科。