26:06Learning
From the PhD Lab: How do biofilms help keep bacteria alive? - with Josh Horton
The Royal Institution
Caty and Ashley teach you how to use "cat's pajamas," "bee's knees," and other English idioms that refer to animals. Originally published at - http://learningenglish.voanews.com/media/video/talk2us-animal-idioms/2688620.html
Published 2015-03-25 · Watch on YouTube ↗
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