un·loos·en /-ˈlusṇ/
  (v.)解開;鬆開;放開;解放
  Un·loos·en v. t.  To loosen; to unloose.
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  unloosen
       v 1: grant freedom to; free from confinement [syn: free, liberate,
             release, unloose, loose] [ant: confine]
       2: loosen the ties of; "unloose your sneakers" [syn: unloose]