| 释义 |
attention deficit disorderBrE /əˌtenʃn ˈdefɪsɪt dɪsɔːdə(r)/ NAmE /əˌtenʃn ˈdefɪsɪt dɪsɔːrdər/ (also atˌtention ˌdeficit hyperacˈtivity disorder ) noun [U ] (abbreviation ADD , ADHD ) a medical condition , especially in children , that makes it difficult for them to pay attention to what they are doing , to stay still for long and to learn things 注意（缺陷）障碍（伴多动）；儿童多动症 |