下沉

In a sentence

• 船在水面上缓缓下沉。

  The boat is slowly sinking in the water.

  In this sentence, "下沉" indicates the physical action of moving downward into liquid, namely water, describing the actual physical process.

• 市场竞争加剧后，小型企业的利润下沉到最低点。

  After market competition intensified, small businesses' profits dipped to the lowest point.

  Here, "下沉" metaphorically describes a decline or decrease in level or value, used to explain economic or abstract deterioration.

• 为了拓展业务，公司开始下沉到乡镇市场。

  To expand its business, the company started reaching into township markets.

  In this usage, "下沉" metaphorically implies extending influence or action to lower or less developed levels, common in business strategies.