She had her ears 'pierced'. = She 'pierced' her ears. [=she had holes made in her ears so that she could wear earrings]
The fog was 'pierced' by a dim light. [=a dim light could be seen through the fog]
The troops 'pierced through' the enemy's defenses.
(..) And I got you a present for letting me stay with you Ready? / Yup Ta- da You piereced her ears? Doesn't it make her nose look smaller? You pierced her ears? How could you do this without telling me? Well, if I had told you, then it wouldn't have been a surprise. Now would it? I think she looks cute (..)2003 TvShow: Friends Title: The One Where Rachel's Sister Babysits Season: 10 Episode 5