Since we have a focused subject you should not talk at large .

我们有一个焦点话题，所以你不应该 东拉西扯 地 谈。

Talk about a Good Command and Application of Stability at Large Angle

谈 对 大倾角稳性知识的掌握和运用

I recently gave a talk at a big corporate conference to hundreds of delegates without exception middle-managers from large companies .

我最近曾 在一此大型企业会议上向数百名代表发表 讲话，听众清一色来自 大公司的中层管理者。