英汉词典

1. (人或物的)组，群，簇
    A cluster of people or things is a small group of them close together.

    e.g. ...clusters of men in formal clothes...
           一群群身着正装的男人
    e.g. There's no town here, just a cluster of shops, cabins and motels at the side of the highway.
           这儿没有城镇，只在公路边上有一片商店、小木屋和汽车旅馆。

2. (人)聚集
    If people cluster together, they gather together in a small group.

    e.g. The passengers clustered together in small groups...
           乘客们三五成群聚在一起。
    e.g. The children clustered around me.
           孩子们聚集在我的周围。