A bomb blast had weakened an area of brick on the back wall.

炸弹爆炸使后墙的块砖都松动了。

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To their surprise, they found that it climbed over to the fire alarm on the back wall and set it off!

令他们惊讶的是，他们发现它爬到了后墙的火警警报器上，拉响了警报！

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How can you tear the back wall off a house you don't even own?

你怎么能把甚至还不属于你的房子的后墙拔掉呢？

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I quickly stood up. My back was against the cave wall.

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When I am looking at that wall, its photons are hitting the wall and coming back to me.

当我盯着墙看的时候，光子撞击墙面,又回到我眼中来。

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we just put the wall back up

我们后来把墙扶起来了，

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Along the back wall hangs a line of long, thin burettes filled with colored liquids.

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Derby-racing trophies lined the back wall, and a collection of his prized cars were displayed on a table.

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On Monday night, Sandy's waves ripped out the entire deck of his home, along with the back wall.

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