It is useless to speculate why he did it.
对他为什么这么做妄加猜测毫无用处。
It's always hard to speculate about the future.
推测未来总是很难的。
It's tempting to speculate about what might have happened.
大家不禁猜测，到底发生了什么事。
This has led scientists to speculate on the existence of other galaxies.
这就使得科学家推测还有其他星系存在。
I mean it's interesting to speculate.
我的意思是，这是很有趣的推测。
Studies on nonalien species have not produced similar results, leading researchers to speculate that avian social learning may be fundamentally different from that of mammals.
对非外来物种的研究没有得到类似的结果，这使得研究人员推测鸟类的社会学习能力可能与哺乳动物的社会学习能力有根本性的区别。
He likes to speculate on the stock market.
他喜欢炒股。
It is premature to speculate about the resumption of negotiations.
考虑谈判的恢复还太早。
We'll never really know of course, though it's interesting to speculate.
当然，我们永远也不会真正了解，尽管推测起来很有趣。
He has bought himself time by refusing to speculate publicly on the cause of the blast.
他拒绝公开推测爆炸原因，为自己赢得了时间。
He refused to speculate on the possible effects on relations between the two governments.
他拒绝猜测这对两国政府关系可能产生的影响。
This, in turn, has a major effect on their diet, leading scientists to speculate that the ability to learn population-specific hunting methods could be driving the animals' genetic development.
这进而对它们的饮食产生了重大影响，促使科学家们推测，学习特定种群狩猎方法的能力可能推动了这些动物的基因发育。
推测是容易的。
“People are beginning to speculate, ” he says.
他说：“人们会禁不住开始猜测。
Very weird! Very strange to speculate like this.
非常奇怪，这种假设也很奇怪。
It is hard to speculate what Apple's Geo team is brewing.
很难知道苹果得地理服务团队一直在做什么。
Care to speculate upon what the world would be like now if.
试想世界将会是怎样的，如果？
If you want to speculate on the next bubble, it's up to you.
你是否想在下一轮泡沫中投机要由你自己决定。
While I suss that out, feel free to speculate in the comments section.
当我想明白时，去推测结论部分就感觉到很轻松。
He needed to speculate on the situation before making the decision.
他需要在做决定前推测一下形势。
It's hard to speculate what could bring down the Net, but it's not impossible.
要想猜测出究竟什么会把互联网搞垮并不容易，但那并不是不可能的。
These swaps are used to speculate on the likelihood of a borrower repaying its debt.
这些互换是用来对借款人偿还贷款的可能性作投机用的。
It is, of course, a crazy idea but sometimes it's cute to speculate about crazy ideas.
这当然是个疯狂的主意，但有时，计算这些观点很可爱。
Its low density has led scientists to speculate that it may consist of porous, icy material.
土卫十六密度较低，科学家因此推断它可能由多孔冰物质构成。
We can't afford to speculate what else it should do. We need to really focus on what it needs.
我们不能猜想它的其他功能，我们必须侧重于它需要什么。
A: on your first question, the talks are yet to be held. I am not in a position to speculate on the details.
答：关于第一个问题，会谈还没有举行，我不想对会谈情况进行猜测。
People have taken out loans to speculate, while a few individuals have even pawned their houses to buy shares.
人们开始用贷款进行投机，甚至还有一些个人当掉房子来买股票。
"The researchers use the higher performance in one area to speculate about deficit elsewhere," says Dawson.
“研究人员用一个领域的高性能来推测其他地方的缺陷，”道森说。
It is not necessary to possess the ultimate definition of this uniqueness. Even to speculate on it is gain.
没有必要弄清这种独特性的终极定义，但即是这种独特性进行思考也是一种收获。
It is not necessary to possess the ultimate definition of this uniqueness. Even to speculate on it is gain.
没有必要弄清这种独特性的终极定义，但即是这种独特性进行思考也是一种收获。
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