Tā shēncái qīngyíng, shì chūsè de bālěiwǔ yǎnyuán.
Her slender, graceful figure made her an outstanding ballet dancer.
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轻盈 is a literary and poetic adjective evoking physical grace and weightlessness. It is used for dancers, butterflies, footsteps, and similarly delicate movements. In everyday speech, 轻巧 (nimble) or 苗条 (slim) are more common.
