a girl student 变复数是否是 girls students?

a girl student 变复数是否是 girls students? a girl student 改为复数 I am a (student) 变复数 I'm a student变复数形式 She's a good girl 变复数 This is a girl student.改为复数句 this girl has a brown watch变复数 复合名词变复数如girl student是变成girls students还是girls student后面的名词表示身份要不要变 baby elephant,boy student 如何变复数 I was a student two years ago.变复数句作业急需啊!跪求!%>_ that is a ruler this is a girl student he is a student the woman teacher is english 改复数句 为什么woman doctor复数形式是women doctors 而girl student复数形式是girl students any other girl的girl为什么变复数 she is a girl复数 The girl is a student.对a student提问 He is a student.改为复数形式.怎么变?什么意思我都没看懂…… school girl与student girl有什么区别?Rosa is a（ ）填school girl还是student girl?school girl与student girl有什么区别?为什么? 关于英语合成名词复数的问题girl student ————girl students是否也可以为girl student ——--girls student还有you are the apple in my eyesyou are the apple of my eyes以上两句那句是正确的?以及其原因