1. 聚成一团：buna 丁纳橡胶 | bunch up 聚成一团 | bunch 串

2. 缩成一团(很好的表达：Heavy flow 多量 | Bunch up 缩成一团(很好的表达!) | Curl 卷曲

verb

1. gather or cause to gather into a cluster

    e.g. She bunched her fingers into a fist

    Synonym: bunchbundleclusterclump

2. form into a bunch

    e.g. The frightened children bunched together in the corner of the classroom

    Synonym: bunch togetherbunch