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》

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

Mad, I marched my way through the dirt all the way to the fence gate that led to the alley.

我心里发狂，就往通向巷子的篱笆门那里走去，一路上脏兮兮的。

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