Attention deficit disorder is a condition where people, especially children, are unable to concentrate on anything for very long and so find it difficult to learn and often behave in inappropriate ways. The abbreviation ADD is often used.
N-UNCOUNT
Attention deficit disorder is a condition where people, especially children, are unable to concentrate on anything for very long and so find it difficult to learn and often behave in inappropriate ways. The abbreviation ADD is often used.
N-UNCOUNT
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012