demonstrably
(ad.)可論證地,明確地,憑論證
De·mon·stra·bly, adv. In a demonstrable manner; incontrovertibly; clearly.
Cases that demonstrably concerned the public cause. --Clarendon.
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demonstrably
adv : in an obvious and provable manner; "his documentary sources
are demonstrably wrong" [syn: provably, incontrovertibly]