| 单词 | attention deficit hyperactivity disorder |
| 释义 | attention deficit hyperactivity disorder (abbreviation ADHD) UK noun uncountable ■a condition in which someone, especially a child, is often in a state of activity or excitement and unable to direct their attention towards what they are doing （尤指儿童的）注意力缺乏，过度活跃症，过动症 |
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