Traders gamble oil price yo-yo is on way up
By Javier Blas in London
Published: December 11 2008 18:22 | Last updated: December 11 2008
18:22
http://www.ft.com/cms/s/0/daec0b28-c7ae-11dd-b611-000077b076...

看了这篇文章的标题我没明白yo-yo是什么意思。

google中define: yo-yo才明白。

  • Slang for a very volatile market.
    investor.cisco.com/glossary.cfm

  • a toy consisting of a spool that is reeled up and down on a string by motions of the hand
    wordnet.princeton.edu/perl/webwn

  • The yo-yo is a toy consisting of two equally sized and weighted disks of plastic, wood, or metal, connected with an axle, with a string tied around it. First becoming popular in the 1920s, "yo-yoing" is still enjoyed by children and adults alike.
    en.wikipedia.org/wiki/Yo-yo