趣味青春英语 第135期:Off the top of your head(在线收听

   Idiom:

  Off the top of your head 表示某人的推测/猜想
  Hit the book:
  Leading
  Equivalent
  Robust
  Hygiene
  Body mass index
  Significance
  原文地址:http://www.tingroom.com/lesson/qwqcyy/320521.html