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1. Oxford Dictionary

   drilling

   • IPA[ˈdrɪlɪŋ]

   英式

   • n.
     the action of making a hole in something by boring with a drill；the action of sinking a borehole in order to obtain oil or water

   • noun: drilling

2. • 釋義

   n.

   名詞

   • 1. the action of making a hole in something by boring with a drill the windows vibrated all day from the sound of drilling
   • ▪ the action of sinking a borehole in order to obtain oil or water drilling should begin next year
   • ▪ the action of cutting away part of a tooth before filling it some new dental technologies have eliminated the use of drilling
   • 2. instruction or training in military exercises our days often began with military drilling