sporadically [spə'rædɪklɪ]

例句:

• He attends school sporadically.
  他上学时断时续。
  
• The distant thunder from the coast continued sporadically.
  远处海岸边不时传来雷声隆隆。
  
• There are some trees sporadically around his house.
  他的房子周围零星地有点树木。
  
• The condition tends to get better or worse sporadically.
  来自BBC
• But it's an assured, sporadically thrilling first shot.
  来自BBC
• Since then, ash clouds and flight disruption have continued sporadically.
  来自BBC