Prevent from与Keep from的区别?

Prevent from与Keep from的区别?
Prevent from与Keep from的区别?

Prevent from与Keep from的区别?
prevent sb.from doing = keep sb.from doing 阻止某人做某事;
区别是prevent sb.from doing 中的from 可以省略;
而keep sb.from doing 中的from 不可以省略.