she is in a blue dress
she is dressed in a blue dress
she wears a blue dress
如有不明白请追问
她穿的裙子是蓝色的
追答the dress she wears is blue,其中she wears 是做dress的定语,也可添加先行词that,为the dress that she wears is blue,不过一般情况下that都是省略的
她穿的裙子是蓝色的
追答The dress she wearing in is blue
追问in is?对吗?