speculate
v
1 [I, Ipr, Tf]
~ (about/on/upon sth) form opinions without having definite or complete knowledge or evidence; guess 思考; 思索; 推断; 推测
speculate about/upon the future 对未来的推想
I wouldn't like to speculate on the reasons for her resignation. 我不愿意猜测她辞职的原因.
I can only speculate that he left willingly. 我看他一定是自愿走的.
2 [I, Ipr] ~ (in sth) buy and sell goods or stocks and shares in the hope of making a profit through changes in their value, but with the risk of losing money 投机; 做投机买卖
speculate in oil shares 做石油股票的投机买卖
speculating on the stock market 进行证券投机.
It's much cheaper to camp than to stay in a hotel.
露营比住旅馆要便宜多了。
On the subject of reading, Francis Bacon, who lived at about the same time as shakespeare, wrote these words, Some books are to be tasted, others to be swallowed, and some few to be chewed and digested. This good advice shows how it is possible to read