evolve

物种通过自然选择随时间进化。

Species ___evolve over time through natural selection.

随着科技的发展，智能手机的功能不断进化。

Smartphone features ___evolve continuously as technology advances.

这些蝴蝶逐渐进化出更鲜艳的颜色来吸引配偶。

These butterflies gradually ___evolve brighter colors to attract mates.