“两个都”是both are还是are both?

“两个都”是both are还是are both? 是 are both还是both are 是ALL ARE 还是ARE ALL?是BOTH ARE 还是ARE BOTH?这两个用法不是很清楚. both are还是are both 是THEY ARE BOTH 还是THEY BOTH ARE both are还是are bot both are正确还是 are both正确 是both ok还是both are ok?tell me why? 是both ok还是both are ok?为什么? 他们都是,是both are they 还是 they both are?Are your parents teachers?Yes,both are they Yes,they both are原题是这样的 They both speak English.We are both students.We are both too young.这三句中的both是副词还是代词 我们都是女孩是we are both girls 还是 we are both girl 请问是are both not good还是 are not both good we are both students/we both are students都对? both和be动词的位置是we both are crazy about music还是we are both crazy about music? They both are 还是They are both原因 they are both australian 还是 they are both australians both and若连接两个不同的不可数名词,主语算单还是复?就像both juick and milk （be） drink 是is还是 are