v.

to believe especially on uncertain or tentative grounds

同義詞：theorizetheoriseconjecturehypothesizehypothesisehypothecatesuppose

talk over conjecturally, or review in an idle or casual way and with an element of doubt or without sufficient reason to reach a conclusion

reflect deeply on a subject

"philosophers have speculated on the question of God for thousands of years"

同義詞：chew overthink overmeditateponderexcogitatecontemplatemusereflectmullmull overruminate

invest at a risk

同義詞：job

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