她后背长了一个大疖子，疼得晚上睡不着觉。

She had a large ___carbuncle on her back that was so painful it kept her awake at night.

这枚戒指镶嵌着一颗切割成圆形的深红色石榴石。

The ring features a deep-red ___carbuncle cut in a rounded shape.