surround/sə'raʊnd/

v. be around sb/sth

v. [T] 围绕；包围：The police surrounded the building. 警察包围了这栋建筑。

◇The lake was surrounded by trees. 湖四周都是树。

构词sur- + round

音组-ound/-aʊnd/

around; bound; found; ground; pound; round; sound; surround