请问 person 的复数不是 people 吗？那 persons 也是 person 的复数吗？peoples 呢？

如以下两个例句：

1. Some persons hold the opinion that we should make a plan for money usage．

2. Peoples’ bodies nowadays are just like batteries of poor quality which need to be charged for a long time, and which not only can’t be fully-charged, but will also be out of power very soon.