un·bur·den /-ˈbɝdṇ/
  (vt.)卸貨,使安心,卸下重擔
  Un·bur·den v. t.
  1. To relieve from a burden.
  2. To throw off, as a burden; to unload.
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  unburden
       v 1: free or relieve (someone) of a burden
       2: take the burden off; remove the burden from; "unburden the
          donkey" [syn: disburden] [ant: burden]