habrán perfeccionado
-they/you will have perfected
Future perfectellos/ellas/ustedesconjugation ofperfeccionar.

perfeccionar

También habrán perfeccionado su apariencia física, aumentado su altura y serán muy atractivos y juveniles, reflejando en el exterior la belleza interior de sus seres internos.
They also have perfected their physical appearance, have increased their height and look very attractive and youthful, reflecting on the outside the beauty of the inside of their inner selves.
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