des·per·a·do /ˌdɛspəˈrɑ(ˌ)do, ˈre-/
  亡命之徒
  Des·per·a·do n.; pl. Desperadoes   A reckless, furious man; a person urged by furious passions, and regardless of consequence; a wild ruffian.
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  desperado
       n : a bold outlaw (especially on the American frontier) [syn: desperate
           criminal]
       [also: desperadoes (pl)]