There is a map on the wall in the classroom.

教室的墙上有一幅地图。

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The wall in the classroom is very beautiful. There are many pictures on the wall.

泡泡的每个教室都很漂亮，墙上有很多美丽的画。

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I used to have a very large poster hanging on the wall in my classroom that read: If you make a choice you must be willing to accept the consequence of that choice.

我过去曾在我们班的教室里挂一幅巨大的海报，上面写着：“如果你作出选择，你要愿意接受这个选择所带来的后果。”

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At least one of those bullets lodged in the wall, but none of the 21 students in that classroom was injured.

CNN: Police search for gang members in shooting

Once, he remembered, a boy in the room next door was thrown against the classroom wall, and he watched the blackboard on his side of the wall come off its hinges and fall to the wooden floor.

NEWYORKER: Teaching