* The sun's gradual rise painted the sky with soft hues of pink and orange. (This sentence emphasizes the slow and steady nature of the sunrise.)
* Over the course of several years, her health showed a gradual improvement. (This sentence highlights the slow but consistent progress in her recovery.)
* The gradual decline of the Roman Empire was a complex process with many contributing factors. (This sentence demonstrates how "gradual" can be used to describe a process that unfolds slowly and over a long period.)
These are just a few examples. The best sentence for "gradual" will depend on the specific context you're using it in.