他后背上的红肿区域被确认是由葡萄球菌感染引起的痈。

The red swollen area on his back was confirmed to be a ___carbuncle caused by staphylococcus infection.

这枚戒指的中心镶嵌着一颗深红色的圆面红宝石。

The ring has a deep-red ___carbuncle set in its center.