in门一般都拆在墙里面
选in.
The door is in the wall.
你的问题很怪，既能够 in 也能够 on. 一般应该door on the wall,但是有书名是in.
H. G. Wlls's short story "The Door in the Wall" was first published in 1911 as part of a collection titled The Door in the Wall, and Other Stories.
Marguerite deAngeli "The Door in the Wall"
Newbery Award Winner 1950
Lewis Carroll Shelf Award 1961
The door is in the wall. (in,on)
The picture is on the wall.
in强调在里面 on强调在外表
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