Plato and aristotle speculated on memory and thought . 柏拉图和亚理士多德曾经推究了记忆和思想。
2.
From time to time, scientists have speculated that the proton and electron charges might not be exactly equal in magnitude . 屡次地，科学家们推究质子与电子的电荷大小可能不恰好相等。
3.
Abstract ： the reason of city - alienation is that the matter - purpose has covered the human - purpose and the human nature has yielded to substance - desire 摘要：推究城市异化的根由，源于物的目的遮蔽了人的目的，人性屈从于物欲。
4.
The answers of course depend on where one is living , but in general it is reasonable to imagine that the variables are not that huge 答案当然是取决于每个人的外在条件，环境与背景，但是照理推究这外在的条件在大环境下仍有很多的相似处，所以变数也可被简化。
5.
For a moment the voices cheered the heart of tess , till she reasoned that this interview had its origin , on one side or the other , in the same attraction which had been the prelude to her own tribulation 有一会儿，这些声音使苔丝的心高兴起来，后来，她又推究出他们会面的原因，吸引他们的是来自一方或另一方的力量，而这种同样的吸引力正是导致她的灾难的序幕。
