To take to one's heels and run away quickly; to bolt off or scamper away.
一听到放学的铃声响起，孩子们就撒丫子跑出教室，冲向操场。
As soon as the dismissal bell rang, the children took to their heels and ran out of the classroom, rushing towards the playground.
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To take to one's heels and run away quickly; to bolt off or scamper away.