document conferencd的用法和樣例：
例句
- Companies have already found a number of ways to enhance business through document conferencing.
各公司已經找到通過文檔會議增強業務的多種方法。 - To conduct a multipoint document conference using a teleconferencing service provider, conference leaders need to call and reserve dates and time for the conferences.
利用遠程會議服務供應商來開多點文檔會議，會議主持者需要打電話預定會議的日期和時間。
