surround

Tall stone walls and a deep moat surround the medieval castle to protect it from invaders.

(Chinese) 高大的石墙和深邃的护城河围绕着这座中世纪城堡，以保护它免受入侵者的侵害。

The police officers moved quickly to surround the building and block all possible exit routes.

(Chinese) 警官们迅速行动包围了建筑物，并封锁了所有可能的出口。