pad·lock /ˈpædˌlɑk/
 挂鎖,關閉,禁止進入
 Pad·lock n.
 1. A portable lock with a bow which is usually jointed or pivoted at one end so that it can be opened, the other end being fastened by the bolt, -- used for fastening by passing the bow through a staple over a hasp or through the links of a chain, etc.
 2. Fig.: A curb; a restraint.
 Pad·lock, v. t. [imp. & p. p. Padlocked p. pr. & vb. n. Padlocking.] To fasten with, or as with, a padlock; to stop; to shut; to confine as by a padlock.
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 padlock
      n : a detachable lock; has a hinged shackle that can be passed
          through the staple of a hasp or the links in a chain and
          then snapped shut
      v : fasten with a padlock