Level 6 · word 16,148 of 20,000

hyperactivity

/ˌhaɪpərækˈtɪvɪti/ American
  • n. 活动过度, 多动
Definition
  • n. the state of being unusually or abnormally active
Example
The teacher noticed the boy's hyperactivity during quiet reading time.
老师注意到那个男孩在安静阅读时间里表现得过度活跃。