cluster

Compared meaning: a group of similar things gathered closely (noun).

比较义项：紧密聚集在一起的一群相似事物或人（名词）。

• cluster 本词

  The most general and neutral word for things grouped closely together, whether people, objects, or points of light; common in both everyday and scientific contexts, without implying tidiness or attachment.

  是最通用、最中性的词，指紧密聚在一起的事物，无论是人、物体还是光点；日常和科学语境中都常用，不暗示整齐或彼此相连。

  A cluster of stars glittered brightly above the mountains tonight.

  今晚，一簇星星在群山上方闪闪发光。

• bunch

  Used mainly for things that grow together or are fastened into one unit, like flowers, grapes, or keys; informal and very common in everyday speech.

  主要用于一起生长或被捆扎成一束的东西，如花、葡萄或钥匙；语气较口语化，在日常口语中非常常见。

  She fumbled for the right key on her heavy bunch of keys.

  她在那一大串钥匙里摸索着找到正确的那把。

• clump

  Describes a small, dense, often untidy or irregularly shaped mass, typically of plants, hair, earth, or similar matter stuck together; stresses compactness rather than orderly arrangement.

  指小而密实、常显杂乱或形状不规则的一团，通常是植物、毛发、泥土等黏在一起的东西；强调紧实密集，而非整齐排列。

  A clump of wet hair clogged the shower drain again.

  一团湿头发又把淋浴排水口堵住了。

Cluster, bunch, and clump all name things closely grouped together. Cluster is the most general word, used for people, objects, or light. Bunch names things grown or tied into one unit, like flowers or keys. Clump describes a small, dense, untidy mass, like hair.

这三个词都表示紧密聚在一起的一群或一丛事物，但语气和用法不同：cluster最中性、通用性最强，可用于人、物体或抽象的科学语境；bunch多指一起生长或被捆扎成一束的东西，如花、钥匙，口语色彩较浓；clump强调小而紧密、常显杂乱的一团，如毛发、泥土。这里不比较 clump 表示“沉重的脚步声”的用法。

Compared meaning: to gather together in a group (verb).

比较义项：聚集、群集在一起（动词）。

• cluster 本词

  Cluster emphasizes people or things bunching closely together into a small, tight group, often around a central point; it can describe objects as well as people.

  cluster强调人或物紧密地聚拢成一个较小的团体，常常围绕某个中心点聚集；既可用于人，也可用于物体。

  Reporters clustered around the mayor after the announcement.

  记者们在市长发表讲话后聚集在他周围。

• flock

  Flock emphasizes a large number of people or animals moving or gathering together, echoing sheep or birds moving as one group; used mainly for people or animals, not objects.

  flock强调大批人群或动物像羊群或鸟群一样成群移动或聚集在一起；主要用于人或动物，不用于物体。

  Fans flocked to the stadium to see the band perform.

  粉丝们蜂拥而至体育场观看乐队演出。

Cluster and flock both mean to gather together, but they picture different scenes. Cluster emphasizes people or things bunching closely around a point. Flock emphasizes a large number of people or animals moving together, echoing sheep or birds, and is used mainly for people.

cluster和flock在这个意义上都表示聚集在一起，但cluster强调紧密地聚拢成一个较小的团体，语气中性；flock强调像鸟群或羊群那样大批聚集或成群移动，画面感更强。这里不比较cluster作名词表示“串，丛”以及flock作名词表示“群，羊群”的用法。