英汉词典

1. 推测;猜测;猜想
    If you speculate about something, you make guesses about its nature or identity, or about what might happen.

speculate的翻译

    e.g. Critics of the project speculate about how many hospitals could be built instead...
           对该项目持批评态度的人在推测如果改作他用不知可以建多少所医院。
    e.g. It would be unfair to Debby's family to speculate on the reasons for her suicide...
           猜测黛比自杀的原因对她的家人来说是不公平的。