blind·ly /ˈblaɪn(d)lɪ/ 副詞
  Blind·ly, adv. Without sight, discernment, or understanding; without thought, investigation, knowledge, or purpose of one's own.
     By his imperious mistress blindly led.   --Dryden.
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  blindly
       adv 1: without seeing or looking; "he felt around his desk blindly"
       2: without preparation or reflection; without a rational basis;
          "they bought the car blindly"; "he picked a wife blindly"