海水开始退潮，露出湿漉漉的沙滩。

The tide started to ___recede, exposing the wet sand.

随着浪潮逐渐退去，沙滩上留下的痕迹变得越来越模糊。

The tide ___receded, leaving the footprints on the sand less visible.

随着年龄增长，他的发际线明显后退了。

His ___receding hairline became more noticeable as he got older.