bunch

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

  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 本词

  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。