cross-posting
/ˈkrɒspəʊstɪŋ/noun
mass noun
1
- the transfer of an employee or officer to a different department, industry, or regiment（雇员或军官的）调任。
2
- the simultaneous sending of a message to more than one newsgroup or other distribution system on the Internet in such a way that the receiving software at individual sites can detect and ignore duplicates（因特网上帖子等的）重复张贴。