讨论会

kē jì tǎo lùn huì

科技讨论会

science and technology symposium

gěi tǎo lùn huì zuò chū jī jí gòng xiàn

给讨论会作出积极贡献

make positive contributions to a discussion

quán tiān de tǎo lùn huì

全天的讨论会

an all-day seminar