They've built a high fence all round to keep intruders out.

他们在周围竖起了高高的围墙，以防外人进入。

《牛津词典》

They've built a fence all round to stop the children fallIng In.

他们在四周围起一圈栅栏防止儿童掉进去。

youdao

All the ski runs are carefully marked. And if there is something that might be dangerous, like a cliff or something, then they often put a fence around it.

所有的滑雪道都有清楚地标示出来。而且如果有什么危险的，像是悬崖或什么的，他们通常会在附近围上栅栏的。

youdao

The batter can run to all four bases if he hits the ball over the fence or out of the ballpark.

VOA: special.2009.04.12

"And it's just kind of sad too, because all the pictures that you get have this chain-link fence behind it.

VOA: standard.2010.02.17

Mr Tyrie has also called on independent reviews of the effectiveness of the ring-fence proposals across all banks to take place at least once every four years.

BBC: Business

Before the fence was built, all that separated that stretch of Mexico from California was a single strand of cable that demarcated the international border.

NPR: San Diego Fence Provides Lessons in Border Control

On a narrow road of mostly boxy structures, the Gouws' four-story home looks from the outside as if it could have been airlifted from Paris, with a stone-colored facade, neat rows of elegant windows and ivy all over the fence.

WSJ: Western Splendor in Hong Kong