TED-ED

英语 Lessons

• TED-ED
  What causes kidney stones? Arash Shadman

• TED-ED
  How do your kidneys work? Emma Bryce

• TED-ED
  What does the liver do? Emma Bryce

• TED-ED
  How the heart actually pumps blood? Edmond Hui

• TED-ED
  The history of tea - Shunan Teng

• TED-ED
  The history of chocolate - Deanna Pucciarelli

• TED-ED
  History through the eyes of the potato - Leo Bear-McGuinness

• TED-ED
  Where does gold come from? - David Lunney