群众围观在英语中可以表达为 “a crowd gathers to watch” 或 “a crowd is gathered around watching”。这里具体使用哪个短语取决于上下文，以下是一些具体用法：
a crowd gathers to watch：这个短语强调的是人群聚集起来观看某个事件或场景。
- Example: “A crowd gathers to watch the fireworks display at midnight.”
a crowd is gathered around watching：这个短语则更侧重于描述人群围在某个中心点周围观看。
- Example: “A crowd is gathered around the street performer, watching intently.”
另外，还有一些更具体的表达方式，比如：
a crowd is onlookers：直接将围观的人称为onlookers。
- Example: “The onlookers were fascinated by the unusual sight.”
a crowd is watching the spectacle：强调围观的是一种壮观或引人注目的景象。
- Example: “A crowd is watching the spectacle of the solar eclipse.”