Possessive pronouns是物主代词的意思,包括mine,yours等等
possession意思很多,包括所有权,领地等的意思
下面的baidu词典提供
possession
名词 n.
1.拥有;占有[U]
The possession of a degree does not guarantee you a job.
拥有一个学位不能保证你找到工作.
2.所有物;财产[P]
Her possessions could fit in one suitcase.
她的全部财物可以装在一个手提箱内.
3.领地,属地,殖民地[C][P1]
Some Caribbean islands are still French possessions.
一些加勒比岛屿至今仍是法国的领地.
4.自制,镇定自若[U]
With his usual possession,he answered all the questions.
他以那惯常的沉着回答了所有的问题.
5.着魔[U]
This charm will protect a man from possession by evil spirits.
这个护身符将保护人不致着魔.