三分钟热度 sān fēn zhōng rè dù

DEFINITIONS

  1. brief period of enthusiasm
  2. flash in the pan

CHARACTERS

三 sān three
分 fēn divide; small unit of time etc.
钟 zhōng clock; bell
热 rè hot; heat; fever; restless; zeal
度 dù degree, system; manner; to consider