▲you girls, we girls, they girls 都可以说，其中的 girls 是其前人称代词的同位语（当然其中的 girls 也可根据需要换成其他名词）。如：
You girls, stop talking! 你们这些女孩子，别说话了。
You lawyers are paid to take the tough choices. 你们律师拿了报酬要作困难的选择。
We girls often go to the movies together. 我们女孩子经常一起去看电影。
We teachers should be responsible for it. 我们老师应对此负责。
We expect you boys to behave yourselves, and the same goes for the girls. 我们希望你们这些男孩子能守规矩，女孩子们也一样。
We Chinese are a hardworking people. 我们中国人是勤劳的人民。
We Chinese have a rich cultural heritage. 我们中国人有丰富的历史和文化遗产。
They recruits (=new soldiers) were issued the necessary equipment. 给新兵发了必要的装备。
▲反意疑问句之所以用 will you，是因为前面的You girls stand in the front row 相当于个祈使句：Please stand in the front row。比较：
You girls stand in the front row, will you?
Girls, please stand in the front row, will you?