。
She put on a hat.
Literal
She [topic-は] hat [object-を] put-on.
かぶる means 'to put on (one's head),' specific to hats and headwear. Japanese uses different verbs for different body parts: 着る (torso), はく (legs/feet), かぶる (head), かける (glasses). This lexical specificity has no English parallel.