in·cred·i·bly /-bli/
  (ad.)不能相信地
  In·cred·i·bly, adv. In an incredible manner.
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  incredibly
       adv : not easy to believe; "behind you the coastal hills plunge to
             the incredibly blue sea backed by the Turkish
             mountains" [syn: improbably, implausibly, unbelievably]
             [ant: believably, credibly]