1. other:其他的;另外的+n.复数 e.g.I don't like this kind of book,can you give me other ones?
2. others:另一些 some...others... e.g.There are many students in the park.Some are playing ball,and others are swinging.
3. another:指不确定数目中的另一个+n.单数 e.g.I don'tlike this pencil.Please show me another one.
4. the other:两个之中的另一个 one...the other... e.g.I have twe sisters.One is a teacher,the other is a doctor.
5. the others:余下的全部+n.单数 e.g.In our class,he is a boy,and the others are girl.