pitch warts

例句：

1. 1. The doctor found a few small pitch warts on his arm.
   医生在他的手臂上发现了几个小疣。
2. 2. She had to remove the pitch warts from her face before going to the party.
   她必须在去派对之前把脸上的疣去掉。
3. 3.Pitch warts are caused by a virus that infects the skin and can be spread through close contact.
   疣是由一种病毒引起的，这种病毒会感染皮肤，并且可以通过密切接触传播。