She doesn't like to wear high heels, but she did it for the formal occasion.

wear 是动词，意思是"穿、戴"。 high heels 是由形容词 high（高的）和名词 heel（鞋跟）组成的复合名词，指"高跟鞋"，即鞋跟较高的女鞋。 wear high heels 这个短语表示"穿高跟鞋"的动作。