speculate

1. spec (special -- 特别的、特殊的) => 做投机生意需要特别的推测、思索。

speculate 推测，猜测，投机，炒股

来自拉丁语 speculari,看，观察，来自 specere,看，观察，词源同 spectate,aspect.引申诸相关 词义。

speculate (v.)

1590s, "view mentally, contemplate" (transitive), back-formation from speculation. Also formerly "view as from a watchtower" (1610s). Intransitive sense of "pursue truth by conjecture or thinking" is from 1670s. Meaning "to invest money upon risk for the sake of profit" is from 1785. Related: Speculated; speculating.

1. It is premature to speculate about the resumption of negotiations.

现在猜测谈判是否会重新开始还为时过早。

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

人们才开始构思虚拟系统的时候，我们已经进行开发了。

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

未来一向很难预测。

4. Well, at present we won't speculate on hypotheticals.

嗯，目前我们不想去推测那些假想的东西。

5. We should speculate about the purpose of life.

我们应该想想人生的目的.

【think, reason, muse, speculate, meditate, deliberate, reflect】
这组词都有“思考、判断、思索”的意思，其区别是：
think: 一般用词，指开动脑筋形成看法或得出结论的脑力活动。不着重结论是否正确，见解是否有用。
reason: 指根据资料、证据或事实进行推断，作出结论或判断的逻辑思维活动。
muse: 通常指漫无目的地猜想。
speculate: 指推论过程，隐含在证据不足的基础上作出推测或设想。
meditate: 语气较强，指认真地长时间集中精力进行思考。
deliberate: 指缓慢、按部就班地作仔细而认真的思考或判断。
reflect: 指回想或回顾，侧重认真而冷静地反复地思考某个问题，尤指对已发生事情的思索。