enclose、encircle、envelop、fence与surround这些动词均有“包围”之意。
enclose : 指把某物四周围住或封闭起来，使之与外界隔绝。
- The park that encloses the monument has recently been enlarged.
环绕着纪念碑的那个公园最近扩建了。
encircle : 侧重在某事物周围围成圈状。
- The house is encircled by a high fence.
房屋四周围着高高的栅栏。 - Villaverde is one of the high-rise districts that encircle Madrid.
马德里周边有很多高层建筑区，维拉维尔德就是其中一个。
envelop : 着重指把某个物体完全包起来或整个封起来。
- The graveyard looked ghostly, enveloped in mist.
墓地笼罩在薄雾中，显得阴森森的。
fence : 通常指用栅栏栏开或围起来。
- His property is fenced with barbed wire.
他的房地产四周围有带刺的铁丝网。
surround : 普通用词，既可指环绕、围绕，也可指军事上的包围。
- Snow-capped mountains surround the city.
山顶为积雪覆盖的群山环绕着这座城市。 - Gwen sat at her desk, surrounded by books and papers.
格温坐在桌前，周围堆满了书和报纸。
