think about or take about a matter without having the necessary fact; make guesses
gamble; venture
"Scientists supposed that large dinosaurs lived in swamps"
"We were speculating whether the President had to resign after the scandal"
"I mulled over the events of the afternoon"
"philosophers have speculated on the question of God for thousands of years"
"The scientist must stop to observe and start to excogitate"
"I bought this house not because I want to live in it but to sell it later at a good price, so I am speculating"
Some physicists have speculated that in nature all particles may be colorless.
出自:Scientific American
我们应该想想人生的目的。
It was a quiet evening and Tom was speculating about the origin of the universe.
静悄悄的夜晚,汤姆在思索着宇宙的起源。
他做锡股的投机生意发了财,在做可可的期货交易时几乎又赔了个精光。
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