a、
A,
难准时到场
Hard to be on time
企业对于紧急沟通的会议，会议组织者可能无法在短时间内将所有的参会人员同时召齐。
For an emergency communication meeting, the organizer may not be able to bring all the participants together in a short time.
b、
B,
难在一个工作地域集合参加
Difficult to assemble in a working area
企业把会议人员召集在一处进行传统会议的进行，会议进行拖沓且浪费往返的时间。
Enterprises gather conference personnel in one place for traditional meetings, which are procrastinating and waste time.
C、
C,
难依靠网络处理的外出办事人员
Outgoing staff who are difficult to rely on network processing
依靠QQ和微信视频会议，依靠手机网络通话，声音断断续续不顺畅。
Depending on QQ and Wechat videoconferencing, relying on mobile phone network calls, the voice is intermittent and not smooth.