speculate怎么读，speculate什么意思，speculate短语和例句

1.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。

2.The doctors speculate that he died of cancer.

医生推测他死于癌症。

3.The researchers speculate that craft activities promote the development of nerve pathways in the brain that help to maintain cognitive health.

研究人员推测，手艺活动促进了大脑神经通路的发展，有助于保持认知健康。

4.People speculate about virtuality systems, but we're already working on it.

人们对虚拟系统尚存疑虑，而我们已经在开发了。

5.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。

6.He likes to speculate on the stock market.

他喜欢炒股。

7.It's always hard to speculate about the future.

推测未来总是很难的。