"Surrounded by children" 翻译为 "被一群孩子围着"。
这是一个常用的表达方式，表示一个人被许多孩子围在周围。
一些英文例句及其中文翻译如下：
The teacher was surrounded by children as she read a story to them.
老师在给孩子们讲故事，被一群孩子围着。
The clown was surrounded by children who wanted to play with him.
小丑被想和他玩的孩子们围着。
The musician was surrounded by children who were fascinated by his performance.
音乐家被对他表演着迷的孩子们围着。