The laboratories involved experiments related to the lecture topics, use of electronic instruments, and radio communication system maintenance.

Only that today's lecture topic turns out to be relevant to you after all.

Another interesting lecture topic, he thought.

The lecture topics seem as diverse as some of the college's returning graduates.

The lecture topic of the day was "Public Safety."

There were, to be sure, a few straw men among the lecture topics.

Get as close as you can (physically and mentally) to the lecturer and the lecture topic.

Focus on the lecture topic even before the lecture begins.

His lecture topics ranged from physics to sociology.

His diverse lecture topics includes issues on Jewish medical ethics, eruvim, and conversion.