blotch /blɒtʃ/

• 1. 

  N-COUNT A blotch is a small unpleasant-looking area of colour, for example, on someone's skin. 色斑

  例：

  His face was covered in red blotches, seemingly a nasty case of acne.

  他脸上布满了红斑，看起来像是严重的痤疮。