她不能参加会议，所以她的助手代她出席。
She couldn't attend the meeting so her assistant took her place.
能够参加全世界媒体代表出席的这次世界媒体峰会，我感到非常荣幸。
For all of us, I believe, it is a great honor to be present at this World Media Summit.
你参加了本不必要你出席的会议。
You take part in meetings where your presence really isn't necessary.
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