Knocked in example sentence

This sweatband has inside it a homebuilt skin-conductance sensor, and one day, one of our undergrads knocked on my door right at the end of the December semester, and he said, "Professor Picard, can I please borrow one of your wristband sensors?

More example sentences with word knocked

I went and knocked on the door of the Rio Tinto Chair of Advanced Mineral Extraction at the Royal School of Mines and said, "How do you make steel?"

But getting the wind knocked out of you is the only way to remind your lungs how much they like the taste of air.

You can get knocked down, and it hurts and it leaves scars.

And I knocked on the door.

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