spread betting
noun [ U ] uk/ˌspred ˈbet.ɪŋ/ us/ˌspred ˈbet̬.ɪŋ/
（赌博）点差投注
a form of gambling in which you try to win money by saying what the result of events such as sports games will be
finance & economics specialized（投资活动）点差交易
the activity of risking money on changes in the price of company shares, without buying the shares themselves