0 to guess possible answers to a question when you do not have enough information to be certain -- 猜測；推測，推斷
I don't know why she did it - I'm just speculating. 我不知道她爲甚麽那麽做——我只是猜測。
A spokesperson declined to speculate on the cause of the train crash. 一位發言人拒絕就火車相撞事件的原因作出推測。
Journalists are speculating about whether interest rates will be cut. 記者們在猜測是否會降息。
[ + that ] The newspapers have speculated that they will get married next year. 報紙猜測他們明年會結婚。
1 to buy and sell in the hope that the value of what you buy will increase and that it can then be sold at a higher price in order to make a profit -- 投機，做投機買賣
It's useless to speculate without more information.
Royal-watchers have once again been speculating on the health of the princess.
Scientists have speculated about the possibility of parallel universes.
In addressing ourselves to this process, we are not speculating.
The next section outlines some of these processes and speculates how they may place children at risk.
They speculated that firm growth beyond a very small size might require a discrete jump to a significantly larger operation.
The author speculated that the variation in orientation behaviour may be driven by seasonal activity patterns.
Historians are on firmer ground reconstructing and analyzing past events than they are speculating about what might have happened.
