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to shine; to glow
to look attractive; to look nice; to be set off (by)
青い空に白い雲がとても美しく映えている。
The white clouds in the blue sky are very beautifully shining.
赤いドレスが彼女の肌の色によく映える。
The red dress looks very good with her skin tone.
夕焼けの中で赤く染まった山が映えた。
The mountains, dyed red in the sunset, glowed brilliantly.