单词：off-and-on 

形容词

• 
  [1.a.off-and-on] (同义词:[fitful( adj. 断断续续的, 一阵阵的, 间歇的, 不定的, 不规则的 )]  [interrupted( 被 遮断的, 被 阻止的, 不通的, 中断的 )]  [off-and-on]  )
• 
  注释列句：intermittently stopping and starting; "fitful (or interrupted) sleep"; "off-and-on static"
• 近义词 -> [broken( adj. 坏掉的, 患病的, 被制服的, 断掉的 vbl. break的过去分词 )]