intercourse
/ˈɪntəkɔːs/noun
mass noun
1- communication or dealings between individuals or groups（个体或群体间的）交往, 交流, 交际：
the vital intercourse between the two halves of the empire.
帝国两部分之间至关重要的交流。
1.1
- short for SEXUAL INTERCOURSE.
词源
late Middle English (denoting communication or dealings)： from Old French entrecours 'exchange, commerce'， from Latin intercursus, from intercurrere 'intervene'， from inter- 'between' + currere 'run'. The specifically sexual use arose in the late 18th cent.