The boy in blue is my friend. 强调槐早绝穿着什么颜铅姿色的衣服的睁拿时候要用in
比如：The woman in a red dress is my mother.
That wear blue clothes's boy is my friend.
The boy in blue is my friend.
The boy in blue is my friend.
The boy is my friend who is in blue.
楼答磨主清吵斗这两句都是对的你懂不碰陪懂
That boy wears blue clothes is my friend.