hyperactivityKK [ˏhaɪpɚæˋktɪvɪti] /ˌhaɪpɚæˈktɪvɪti/名詞1過動、過度活躍The doctor linked his hyperactivity to a lack of sleep.醫生認為他的過動與睡眠不足有關。2機能亢進、過度活動醫學Tests revealed hyperactivity of the thyroid gland.檢查顯示他的甲狀腺機能亢進。3異常活絡、過熱Recent hyperactivity in the housing market worries economists.房市近來異常活絡,讓經濟學家感到憂心。