interfamily exchange marriage

例句：

1. 1.The interfamily exchange marriage is a unique cultural tradition in some Asian countries.
   家族间交换婚姻是某些亚洲国家独特的文化传统。
2. 2.In this case, the interfamily exchange marriage is not only beneficial for the families involved but also promotes cultural exchange.
   在这种情况下，家族间交换婚姻不仅对参与的家庭有益，还促进了文化交流。
3. 3.The interfamily exchange marriage has been practiced for centuries and continues to be an important part of many societies.
   家族间交换婚姻已经实践了几个世纪，并且仍然是许多社会的重要组成部分。