It indicated the restless vivacity of her spirit, which to-day was doubly indefatigable in its tiptoe dance, because it was played upon and vibrated with her mother's disquietude.

这表明了她那永不止歇的精神活力，而今天，由于受到她母亲不平静的心情的拨弄和挑动，她那足尖舞跳得益发不知疲倦。