some of和some的区别?怎么用?

some of和some的区别?怎么用? some和some of 的 区别 some和some of,none和none of的区别 some kind of 和some kinds of 的区别 some advice和some pieces of advice的区别 some students 和 some of the student的区别 some words 和some of the words的区别 some food和some kinds of food的区别? some of与of some的区别 all of和some of和one of的区别 most 和most of的区别是什么some和some of的区别是? any和some怎么区别