comedo

例句：

1. 1.She has a lot of acne on herface.
   她脸上有很多粉刺。
2. 2. Theacne on his forehead isgetting worse.
   他额头上的粉刺越来越严重了。
3. 3. Acne can betreated with over-the-counter creams.
   粉刺可以用非处方的药膏治疗。