mull over
 琢磨,反復考慮
 mull over, v. t. To think about; to consider; to ruminate about; as, mull it over and decide in the morning. [Colloq. U.S.]
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 mull over
      v : reflect deeply on a subject; "I mulled over the events of
          the afternoon"; "philosophers have speculated on the
          question of God for thousands of years"; "The scientist
          must stop to observe and start to excogitate" [syn: chew
          over, think over, meditate, ponder, excogitate,
          contemplate, muse, reflect, mull, ruminate, speculate]