V-RECIP (不同社会、种族、宗教群体间)通婚 When people from different social, racial, or religious groups intermarry, they marry each other. You can also say that one group intermarries with another group. (不同社会、种族、宗教群体间)通婚
They were allowed to intermarry. [VERB]
他们被获许通婚。
Some of the traders settled and intermarried with local women. [VERB + with]