大会: plenary session; general mem ...上: upper; up; upward伙伴大会上: worldwide partner conference在大会上发言: speak at the meeting在大会上做演讲: make a speech in assembly公司在游戏开发者大会上: game developers conference会上: aikami举行的商用机器人展览大会上: robobusiness conference and exposition群众大会上午九点届时召开: the time appointed for the mass meeting was 9我要在大会上就中国的语义学教学发表演讲: i'll give a talk on the teaching and learning of semantics in china大会: 1.(社会团体政党召开的会) plenary session; general membership meeting 全国科学大会 national science conference2.(群众会) mass meeting; mass rally; long ream会上网: able to surf the internet会上瘾: habit forming在会上: 51.at the convention; at ameeting; at the meeting; make a speech管理员会上: administrator speaking at the briefing国会上议院: bundesrat会上发言: lesson giving presentations会上瘾的: habit-forming社会上的: social社会上认可: socially acceptable宴会上常用: chinchin在奥运会上: at the olympics; in the olympics在会上102: at the convention在会上发言: address the meeting; speak at the meeting在聚会上: at the party