• need
  9.41%
  He said those incidents underscore the need to follow the la...
• importance
  6.24%
  He underscored the importance of the Kyoto treaty.
• point
  5.83%
  Kerrey underscores that point.
• difficulty
  3.22%
  But his success only underscores the difficulty of doing so.
• fact
  2.56%
  Hobbs underscored that fact during the hearing.
• problem
  2.25%
  A variety of studies underscore the problem.
• concern
  2.20%
  Continuing violence underscored such concerns.
• difference
  1.79%
  And that underscores another difference with the New Beetle.
• risk
  1.64%
  The bad news underscored the risks of developing new drugs.
• message
  1.53%
  State-run television has underscored the message.

• have
  50.02%
  Freddie is having difficulties, too.
• face
  9.00%
  But both policies face difficulties.
• experience
  2.78%
  Suppose you are experiencing some difficulty.
• encounter
  2.41%
  Other funds have encountered similar difficulties.
• cause
  2.01%
  And wet ink can cause difficulties.
• overcome
  1.99%
  He never completely overcame his difficulties.
• acknowledge
  1.54%
  Carol acknowledges the difficulties.
• underscore
  1.23%
  But his success only underscores the difficulty of doing so.
• cite
  1.21%
  North Korea cited logistical difficulties.
• pose
  1.05%
  Each one, however, poses difficulties.