He also once lectured a joint committee of Congress on why basic science was crucial even when it did not lead to instant practical benefits.

He came and lectured to one of our classes once.

You once lectured us about the use of downgrading terminology.

My guess is that he probably lectures once a week.

He became professor emeritus in 1923, but continued to lecture once a week until his death.

Ms. Rice, who once lectured Egyptians on the need to respect the rule of law, did not address those domestic concerns.

She is a figure of international stature, who once lectured China about human rights.

He lectured once a fortnight, going over homework assignments in the intervening week.

"Stop me if I'm wrong, but didn't I hear you lecture once about the impossibility of time travel?"

"One of the purest fallacies is that trade follows the flag," he once lectured.