在英文中，一群瘤子可以用名词"pustule"来表示。这个单词来源于拉丁语"pustula"，意思是"脓包"。

下面是一些英文例句及其中文翻译：

The patient had a pustule on his arm. (患者的胳膊上有一个脓包。)
The pustules on her face were painful and itchy. (她脸上的脓包痛苦并且痒。)
The cream he appped to the pustule helped to reduce the swelpng. (他涂在脓包上的膏帮助减少肿胀。)

注意，"pustule"通常指较小的脓包，而"abscess"则指较大的脓包。