All the wit and learning in this field are to be present at the symposium. 这一领域里的全部学者们将出席这个科学讨论会。
It is with the greatest pleasure that I write to cordially invite your University to send a team of experts to attend the symposium. 我怀着极其愉快的心情给您写信，诚挚地邀请贵学校派遣一专家代表团参加这次科学讨论会。
