There was a group of us on the western side who used to all try to knock off the top level of the wall before the cement had time to try.

在西柏林这边，我们是一大伙子，一直尝试着在柏林墙上的水泥干燥前敲掉最上面的墙块。

youdao

If you bounce the flash off a wall to the side of you, or behind you, then the source of light relative to the subject, is much larger than if you had shot with the flash straight on.

如果你把闪光灯打到你旁边或身后的墙上，相对于拍摄主体来说，此时的光源面积要比直接将闪灯打到主体上要大的多。

youdao

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