His muscles bunched under his shirt.

他衬衫下面的肌肉紧绷绷的。

His forehead was bunched in a frown.

他皱紧眉头。

People were bunched up at all the exits.

人们都被聚集在各个出口处。

Her skirt had bunched up round her waist.

她的裙子在腰际成皱褶收拢。

The sheep bunched together as soon as they saw the dog.

那些绵羊一见到狗就挤作一团。