It's best for newborns to have immediate skin-to-skin contact with their mothers after birth.

skin-to-skin 是由名词 skin（皮肤）通过连字符连接构成的复合形容词，字面意思是"皮肤对皮肤"，用来描述两个人之间直接的皮肤接触。在医学和育儿领域特指"肌肤接触"，这种接触方式有助于新生儿适应外界环境并促进母婴情感联结。