“共用的”用英语怎么说？

一堵共用的墙把他跟他妹妹的后院隔开了.The defence party divided his backyard from that of his sister's.艾滋病可能通过共用的注射器在毒品使用者中传播.AIDS can be spread among drug users through the use of shared syringes.这个单元有四间卧室和一间共用的厨房.The flat has four s...