Long lectures really switch me off.

我觉得冗长的演讲很烦人。

youdao

For starters, long lectures don't hold people's attention in cyberspace.

FORBES: Good morning, HAL

And holding long moral lectures is boring, both for the parent and the child.

FORBES: Seven Economist Mistakes About Parenting

This was not a day of long speeches or lectures on what other nations must do.

WHITEHOUSE: Nuclear Security Summit: Presidential Press Conference