adj.投机的，投机性的，推测的，猜测的，推断的，揣摩的，忖度的，试探的，风险性的

Eric raised a speculative eyebrow.
埃里克疑惑地耸起了眉毛。
Tom's conclusions are purely speculative.
汤姆的结论完全是推测而来的。
What you found was not just speculative.
你们发现的不仅仅是猜测。
The scientist proposed a speculative theory about the existence of parallel universes.
这位科学家提出了一种关于平行宇宙存在的推测性理论。
The article discussed speculative investments in emerging technologies that could yield high returns.
文章讨论了对新兴技术的投机性投资，这些投资可能带来高回报。
Her latest novel is a work of speculative fiction, imagining a world where humans can time travel.
她的最新小说是一部推测性小说，构想了一个人类可以时间旅行的世界。
The company made a speculative bid for the competitor, hoping to expand its market share.
这家公司出于投机目的对竞争对手提出了收购报价，希望能扩大市场份额。
The economist's report included speculative assumptions about future interest rates.
经济学家的报告中包含了对未来利率的推测性假设。
He engaged in speculative trading, buying stocks based on rumors rather than solid analysis.
他从事投机交易，根据谣言而非扎实的分析购买股票。
The documentary explored speculative scenarios of how artificial intelligence might evolve in the next century.
这部纪录片探讨了人工智能在未来一个世纪如何发展的几种推测性情景。
Their decision to open a new store was based on speculative market research rather than actual demand.
他们开设新店的决定是基于推测性的市场调研，而不是实际需求。
The historian's book offers a speculative account of what might have happened if key events unfolded differently.
历史学家的书提供了一个推测性的叙述，讲述了如果关键事件以不同方式展开可能会发生什么。
The art piece invited viewers to engage in speculative thinking about humanity's relationship with nature.
这件艺术品邀请观众就人类与自然的关系进行推测性思考。