区别：in the wall指在墙里面，on the wall在墙表面。
in the wall与on the wall
in the wall指在墙里面
比如，there is a window in the wall.
墙上有个窗户
on the wall在墙表面
There is a picture on the wall.
墙上有张画
wall双语例句
Kathryn leaned against the wall of the church
凯瑟琳倚靠在教堂的墙上。
He sat on the wall in the sun
他坐在墙上晒太阳。
He ran his fingers along the inside walls of the box.
他用手指摸了摸盒子的内壁。
She gazed at the wall of books
她目不转睛地盯着书墙。
The police say they met the usual wall of silence
警方称他们像往常一样碰了壁，没人吭气。
