white blister

例句：

1. 1. He developed a white blister on his arm after getting bitten by a bee.
   他被蜜蜂叮咬后，手臂上长了一个白泡。
2. 2. The doctor prescribed an ointmentto treat the white blister onhis foot.
   医生开了药膏来治疗他脚上的白泡。
3. 3. White blisterscan be painful and itchy, soit's important to keep them cleanand dry.
   白泡很痛且痒，所以保持它们清洁干燥很重要。