趣味青春英语电台 第54期:Make or break(在线收听

   Idiom:

  Make or break ( something critical )
  Hit the book:
  Marine
  Organism
  Coral polyps
  Calcium
  Limestone
  Attach to
  Weird
  Coral reef
  原文地址:http://www.tingroom.com/lesson/qwqcyy/318430.html